Skinwalkers - Chapter 18
The following are direct quotes from the book Tribe, On Homecoming and Belonging, by Sebastian Junger, May 2016, except for statements in italic added.
The ultimate act of disaffiliation isn’t littering or fraud, of course, but violence against your own people. When the Navajo Nation—the Diné, in their language—were rounded up and confined to a reservation in the 1860s, a terrifying phenomenon became more prominent in their culture. The warrior skills that had protected the Diné for thousands of years were no longer relevant in this dismal new era, and people worried that those same skills would now be turned inward, against society. That strengthened their belief in what were known as skinwalkers, or yee naaldlooshii.
Skinwalkers were almost always male and wore the pelt of a sacred animal so that they could subvert that animal’s powers to kill people in the community. They could travel impossibly fast across the desert and their eyes glowed like coals and they could supposedly paralyze you with a single look. They were thought to attack remote homesteads at night and kill people and sometimes eat their bodies. People were still scared of skinwalkers when I lived on the Navajo Reservation in 1983, and frankly, by the time I left, I was too.
Virtually every culture in the world has its version of the skinwalker myth. In Europe, for example, they are called werewolves (literally “man-wolf” in Old English). The myth addresses a fundamental fear in human society: that you can defend against external enemies but still remain vulnerable to one lone madman in your midst. Anglo-American culture doesn’t recognize the skinwalker threat but has its own version. Starting in the early 1980s, the frequency of rampage shootings in the United States began to rise more and more rapidly until it doubled around 2006. Rampages are usually defined as attacks where people are randomly targeted and four or more are killed in one place, usually shot to death by a lone gunman. As such, those crimes conform almost exactly to the kind of threat that the Navajo seemed most to fear on the reservation: murder and mayhem committed by an individual who has rejected all social bonds and attacks people at their most vulnerable and unprepared. For modern society, that would mean not in their log hogans but in movie theaters, schools, shopping malls, places of worship, or simply walking down the street.
Here is a list of skinwalkers, and their shooting rampages in the USA over the last 30 years. Note that from 1988 to 1997 there were 6; from 1998 to 2007 there were 9; from 2008 to 2017 there were 24. Why does it appear that over the last 10 years our society is generating a sharp increase in skinwalkers, individuals committing murder and mayhem who have rejected all social bonds and attack people at their most vulnerable and unprepared? Perhaps it is because, as Sebastion Junger stated, this “shows how completely detribalized this country has become.” Our neurological genetic predisposition, the warrior ethos, all for 1 and 1 for all, is no longer relevant in modern life. As individuals in society it appears we are now very far from our evolutionary roots.
In 2013, areport from the Congressional Research Service, known as Congress's think tank, described mass shootings as those in which shooters "select victims somewhat indiscriminately" and kill four or more people.
Mass shootings over last 30 years until October 1, 2017. And recent news from October 2 to December 31, 2017.
November 14, 2017: Rampaging through a small Northern California town, a gunman took aim on Tuesday at people at an elementary school and several other locations, killing at least four and wounding at least 10 before he was fatally shot by police, the local sheriff’s office said.
November 5, 2017: Devin Patrick Kelley carried out the deadliest mass shooting in Texas history on Sunday, killing 25 people and an unborn child at First Baptist Church in Sutherland Springs, near San Antonio.
October 1, 2017: 58 killed, more than 500 injured: Las Vegas
More than 50 people were killed and at least 500 others injured when a gunman opened fire at a country music festival near the Mandalay Bay Resort and Casino on the Las Vegas Strip, authorities said. Police said the suspect, 64-year-old Stephen Paddock, a resident of Mesquite, Nev., was was found dead after a SWAT team burst into the hotel room from which he was firing at the crowd.
Jan. 6, 2017: 5 killed, 6 injured: Fort Lauderdale, Fla.
After taking a flight to Fort Lauderdale-Hollywood International Airport in Florida, a man retrieves a gun from his luggage in baggage claim, loads it and opens fire, killing five people near a baggage carousel and wounding six others. Dozens more are injured in the ensuing panic. Esteban Santiago, a 26-year-old Iraq war veteran from Anchorage, Alaska, has pleaded not guilty to 22 federal charges.
May 28, 2017: 8 killed, Lincoln County, Miss. A Mississippi man went on a shooting spree overnight, killing a sheriff's deputy and seven other people in three separate locations in rural Lincoln County before the suspect was taken into custody by police, authorities said on Sunday.
Sept. 23, 2016: 5 killed: Burlington, Wash.
A gunman enters the cosmetics area of a Macy’s store near Seattle and fatally shoots an employee and four shoppers at close range. Authorities say Arcan Cetin, a 20-year-old fast-food worker, used a semi-automatic Ruger .22 rifle that he stole from his stepfather’s closet.
June 12, 2016: 49 killed, 58 injured in Orlando nightclub shooting
The United States suffered one of the worst mass shootings in its modern history when 49 people were killed and 58 injured in Orlando, Fla., after a gunman stormed into a packed gay nightclub. The gunman was killed by a SWAT team after taking hostages at Pulse, a popular gay club. He was preliminarily identified as 29-year-old Omar Mateen.
Dec. 2, 2015: 14 killed, 22 injured: San Bernardino, Calif.
Two assailants killed 14 people and wounded 22 others in a shooting at the Inland Regional Center in San Bernardino. The two attackers, who were married, were killed in a gun battle with police. They were U.S.-born Syed Rizwan Farook and Pakistan national Tashfeen Malik, and had an arsenal of ammunition and pipe bombs in their Redlands home.
Nov. 29, 2015: 3 killed, 9 injured: Colorado Springs, Colo.
A gunman entered a Planned Parenthood clinic in Colorado Springs, Colo., and started firing.
Police named Robert Lewis Dear as the suspect in the attacks.
Oct. 1, 2015: 9 killed, 9 injured: Roseburg, Ore.
Christopher Sean Harper-Mercer shot and killed eight fellow students and a teacher at Umpqua Community College. Authorities described Harper-Mercer, who recently had moved to Oregon from Southern California, as a “hate-filled” individual with anti-religion and white supremacist leanings who had long struggled with mental health issues.
July 16, 2015: 5 killed, 3 injured: Chattanooga, Tenn. A gunman opened fire on two military centers more than seven miles apart, killing four Marines and a Navy sailor. A man identified by federal authorities as Mohammod Youssuf Abdulazeez, 24, sprayed dozens of bullets at a military recruiting center, then drove to a Navy-Marine training facility and opened fire again before he was killed.
June 18, 2015: 9 killed: Charleston, S.C.
Dylann Storm Roof is charged with nine counts of murder and three counts of attempted murder in an attack that killed nine people at a historic black church in Charleston, S.C. Authorities say Roof, a suspected white supremacist, started firing on a group gathered at Emanuel African Methodist Episcopal Church after first praying with them. He fled authorities before being arrested in North Carolina.
May 23, 2014: 6 killed, 7 injured: Isla Vista, Calif.
Elliot Rodger, 22, meticulously planned his deadly attack on the Isla Vista community for more than a year, spending thousands of dollars in order to arm and train himself to kill as many people as possible, according to a report released by the Santa Barbara County Sheriff’s Office. Rodger killed six people before shooting himself.
April 2, 2014: 3 killed; 16 injured: Ft. Hood, Texas
A gunman at Fort Hood, the scene of a deadly 2009 rampage, kills three people and injures 16 others, according to military officials. The gunman is dead at the scene.
Sept. 16, 2013: 12 killed, 3 injured: Washington, D.C. Aaron Alexis, a Navy contractor and former Navy enlisted man, shoots and kills 12 people and engages police in a running firefight through the sprawling Washington Navy Yard. He is shot and killed by authorities.
June 7, 2013: 5 killed: Santa Monica
John Zawahri, an unemployed 23-year-old, kills five people in an attack that starts at his father’s home and ends at Santa Monica College, where he is fatally shot by police in the school’s library.
Dec. 14, 2012: 27 killed, one injured: Newtown, Conn.
A gunman forces his way into Sandy Hook Elementary School in Newtown, Conn. and shoots and kills 20 first graders and six adults. The shooter, Adam Lanza, 20, kills himself at the scene. Lanza also killed his mother at the home they shared, prior to his shooting rampage.
Aug. 5, 2012: 6 killed, 3 injured: Oak Creek, Wis.
Wade Michael Page fatally shoots six people at a Sikh temple before he is shot by a police officer. Page, an Army veteran who was a “psychological operations specialist,” committed suicide after he was wounded. Page was a member of a white supremacist band called End Apathy and his views led federal officials to treat the shooting as an act of domestic terrorism.
July 20, 2012: 12 killed, 58 injured: Aurora, Colo.
James Holmes, 24, is taken into custody in the parking lot outside the Century 16 movie theater after a post-midnight attack in Aurora, Colo. Holmes allegedly entered the theater through an exit door about half an hour into the local premiere of “The Dark Knight Rises.”
April 2, 2012: 7 killed, 3 injured: Oakland
One L. Goh, 43, a former student at a Oikos University, a small Christian college, allegedly opens fire in the middle of a classroom leaving seven people dead and three wounded.
Jan. 8, 2011: 6 killed, 11 injured: Tucson, Ariz.
Jared Lee Loughner, 22, allegedly shoots Arizona Rep. Gabrielle Giffords in the head during a meet-and-greet with constituents at a Tucson supermarket. Six people are killed and 11 others wounded.
Nov. 5, 2009: 13 killed, 32 injured: Ft. Hood, Texas
Maj. Nidal Malik Hasan, an Army psychiatrist, allegedly shoots and kills 13 people and injures 32 others in a rampage at Ft. Hood, where he is based. Authorities allege that Hasan was exchanging emails with Muslim extremists including American-born radical Anwar Awlaki.
April 3, 2009: 13 killed, 4 injured: Binghamton, N.Y.
Jiverly Voong, 41, shoots and kills 13 people and seriously wounds four others before apparently committing suicide at the American Civic Assn., an immigration services center, in Binghamton, N.Y.
Feb. 14, 2008: 5 killed, 16 injured: Dekalb, Ill.
Steven Kazmierczak, dressed all in black, steps on stage in a lecture hall at Northern Illinois University and opens fire on a geology class. Five students are killed and 16 wounded before Kazmierczak kills himself on the lecture hall stage.
Dec. 5, 2007: 8 killed, 4 injured: Omaha
Robert Hawkins, 19, sprays an Omaha shopping mall with gunfire as holiday shoppers scatter in terror. He kills eight people and wounds four others before taking his own life. Authorities report he left several suicide notes.
April 16, 2007: 32 killed, 17 injured: Blacksburg, Va.
Seung-hui Cho, a 23-year-old Virginia Tech senior, opens fire on campus, killing 32 people in a dorm and an academic building in attacks more than two hours apart. Cho takes his life after the second incident.
Feb. 12, 2007: 5 killed, 4 injured: Salt Lake City
Sulejman Talovic, 18, wearing a trenchcoat and carrying a shotgun, sprays a popular Salt Lake City shopping mall. Witnesses say he displays no emotion while killing five people and wounding four others.
Oct. 2, 2006: 5 killed, 5 injured: Nickel Mines, Pa.
Charles Carl Roberts IV, a milk truck driver armed with a small arsenal, bursts into a one-room schoolhouse and kills five Amish girls. He kills himself as police storm the building.
July 8, 2003: 5 killed, 9 injured: Meridian, Miss.
Doug Williams, 48, a production assemblyman for 19 years at Lockheed Martin Aeronautics Co., goes on a rampage at the defense plant, fatally shooting five and wounding nine before taking his own life with a shotgun.
Dec. 26, 2000: 7 killed: Wakefield, Mass.
Michael McDermott, a 42-year-old software tester shoots and kills seven co-workers at the Internet consulting firm where he is employed. McDermott, who is arrested at the offices of Edgewater Technology Inc., apparently was enraged because his salary was about to be garnished to satisfy tax claims by the Internal Revenue Service. He uses three weapons in his attack.
Sept. 15, 1999: 7 killed, 7 injured: Fort Worth
Larry Gene Ashbrook opens fire inside the crowded chapel of the Wedgwood Baptist Church. Worshipers, thinking at first that it must be a prank, keep singing. But when they realize what is happening, they dive to the floor and scrunch under pews, terrified and silent as the gunfire continues. Seven people are killed before Ashbrook takes his own life.
April 20, 1999: 13 killed, 24 injured: Columbine, Colo.
Eric Harris and Dylan Klebold, students at Columbine High, open fire at the school, killing a dozen students and a teacher and causing injury to two dozen others before taking their own lives.
March 24, 1998: 5 killed, 10 injured: Jonesboro, Ark.
Middle school students Mitchell Johnson and Andrew Golden pull a fire alarm at their school in a small rural Arkansas community and then open fire on students and teachers using an arsenal they had stashed in the nearby woods. Four students and a teacher who tried shield the children are killed and 10 others are injured. Because of their ages, Mitchell. 13, and Andrew, 11, are sentenced to confinement in a juvenile facility until they turn 21.
Dec. 7, 1993: 6 killed, 19 injured: Garden City, N.Y.
Colin Ferguson shoots and kills six passengers and wounds 19 others on a Long Island Rail Road commuter train before being stopped by other riders. Ferguson is later sentenced to life in prison.
July 1, 1993: 8 killed, 6 injured: San Francisco
Gian Luigi Ferri, 55, kills eight people in an office building in San Francisco’s financial district. His rampage begins in the 34th-floor offices of Pettit & Martin, an international law firm, and ends in a stairwell between the 29th and 30th floors where he encounters police and shoots himself.
May 1, 1992: 4 killed, 10 injured: Olivehurst, Calif.
Eric Houston, a 20-year-old unemployed computer assembler, invades Lindhurst High School and opens fire, killing his former teacher Robert Brens and three students and wounding 10 others.
Oct. 16, 1991: 22 killed, 20 injured: Killeen, Texas
George Jo Hennard, 35, crashes his pickup truck into a Luby’s cafeteria crowded with lunchtime patrons and begins firing indiscriminately with a semiautomatic pistol, killing 22 people. Hennard is later found dead of a gunshot wound in a restaurant restroom.
June 18, 1990: 10 killed, 4 injured: Jacksonville, Fla.
James E. Pough, a 42-year-old day laborer apparently distraught over the repossession of his car, walks into the offices of General Motors Acceptance Corp. and opens fire, killing seven employees and one customer before fatally shooting himself.
Jan. 17, 1989: 5 killed, 29 injured: Stockton, Calif.
Patrick Edward Purdy turns a powerful assault rifle on a crowded school playground, killing five children and wounding 29 more. Purdy, who also killed himself, had been a student at the school from kindergarten through third grade.Police officials described Purdy as a troubled drifter in his mid-20s with a history of relatively minor brushes with the law. The midday attack lasted only minutes.
July 18, 1984: 21 killed, 19 injured: San Ysidro, Calif.
James Oliver Huberty, a 41-year-old out-of-work security guard, kills 21 employees and customers at a McDonald’s restaurant. Huberty is fatally shot by a police sniper perched on the roof of a nearby post office.
Integrate the Wisdoms of History into Present Culture
Addressing the polarized political climate in the USA
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The Earth's climate has changed throughout history. Just in the last 450,000 years there have been five cycles of glacial advance and retreat, with the abrupt end of the last ice age about 7,000 years ago marking the beginning of the modern climate era — and of human civilization. Most of these climate changes are attributed to very small variations in Earth’s orbit that change the amount of solar energy our planet receives. But not in the last 450,000 years has the CO2 level gone over 300 ppm. In 1950 it broke 300, and is now over 400 ppm - hence the hockey stick.
Scientific evidence for warming of the climate system is unequivocal - Intergovernmental Panel on Climate Change
The current warming trend is of particular significance because most of it is extremely likely (greater than 95 percent probability) to be the result of human activity since the mid-20th century and proceeding at a rate that is unprecedented over decades to millennia.
Earth-orbiting satellites and other technological advances have enabled scientists to see the big picture, collecting many different types of information about our planet and its climate on a global scale. This body of data, collected over many years, reveals the signals of a changing climate.
The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Ice cores drawn from Greenland, Antarctica, and tropical mountain glaciers show that the Earth’s climate responds to changes in greenhouse gas levels. Ancient evidence can also be found in tree rings, ocean sediments, coral reefs, and layers of sedimentary rocks. This ancient, or paleoclimate, evidence reveals that current warming is occurring roughly ten times faster than the average rate of ice-age-recovery warming.
The evidence for rapid climate change is compelling:
Global temperature rise
The planet's average surface temperature has risen about 2.0 degrees Fahrenheit (1.1 degrees Celsius) since the late 19th century, a change driven largely by increased carbon dioxide and other human-made emissions into the atmosphere. Most of the warming occurred in the past 35 years, with 16 of the 17 warmest years on record occurring since 2001. Not only was 2016 the warmest year on record, but eight of the 12 months that make up the year — from January through September, with the exception of June — were the warmest on record for those respective months.
The oceans have absorbed much of this increased heat, with the top 700 meters (about 2,300 feet) of oceans showing warming of 0.302 degrees Fahrenheit since 1969.
Shrinking ice sheets, glacial retreat and less snow cover
The Greenland ice sheets and the Arctic sea ice and Antarctic ice sheets have decreased in mass. Crystal Serenity was the first Cruise Ship in history to pass through the northwest passage in 2016 - from the north Atlantic, through the Canadian Archipeligo, to northern Alaska, as a result of global warming and less arctic sea ice. Data from NASA's Gravity Recovery and Climate Experiment show Greenland lost 150 to 250 cubic kilometers (36 to 60 cubic miles) of ice per year between 2002 and 2006, while Antarctica lost about 152 cubic kilometers (36 cubic miles) of ice between 2002 and 2005. Glaciers are retreating almost everywhere around the world — including in the Alps, Himalayas, Andes, Rockies, Alaska and Africa. Satellite observations reveal that the amount of spring snow cover in the Northern Hemisphere has decreased over the past five decades and that the snow is melting earlier.
Sea Level Rise
Global sea level rose about 8 inches in the last century. The rate in the last two decades of that century, however, is nearly double that of first eight decades.
The number of record high temperature events in the United States has been increasing, while the number of record low temperature events has been decreasing, since 1950. The U.S. has also witnessed increasing numbers of intense rainfall events such as hurricanes, and an increase in drought, wildfires and mudslides.
Hurricane Irma Hurricane Harvey
In September of 2017 Hurricane Irma had sustained winds of 185 mph for 37 hours, the longest that any hurricane around the world has maintained that intensity. Regarding Atlantic hurricanes, Irma had the second highest wind speed of any hurricane at 185 mph, second only to Hurricane Allen at 190mph in 1980. Irma had the second longest duration as a Category 5 hurricane at 3 days and 3 hours, second only to the Cuba hurricane in 1932 at 3 days 6 hours. Hurricane Harvey stalled over southeast Texas and dumped over 50 inches of rain, the most of any US hurricane and 3rd on the list of Atlantic hurricanes on record since 1900. This is the first time in the history of record keeping that two Category 4 or higher hurricanes have struck the U.S. mainland in the same year, and these hit 8 days apart. This is an example of an increase in storm intensity and of extreme events.
Since the beginning of the Industrial Revolution, the acidity of surface ocean waters has increased by about 30 percent. This increase is the result of humans emitting more carbon dioxide into the atmosphere and hence more being absorbed into the oceans. The amount of carbon dioxide absorbed by the upper layer of the oceans is increasing by about 2 billion tons per year. Ocean acidification occurs when CO2 is absorbed into the water at a high rate. It reacts with water molecules (H2O) to form carbonic acid (H2CO3). The presence of this acid is what decreases the pH, causing coral reefs to bleach and die, and many other impacts on ocean life.
NASA's conclusion based on science with the evidence as presented above: The heat-trapping nature of carbon dioxide and other gases was demonstrated in the mid-19th century. Their ability to affect the transfer of infrared energy through the atmosphere is the scientific basis of many instruments flown by NASA. There is no question that increased levels of greenhouse gases must cause the Earth to warm in response.
Global warming and climate change is the result of increased CO2 levels in the atmosphere, which result in global temperature rise, warming oceans, shrinking ice sheets and glacial retreat, sea level rise, extreme weather events like hurricanes and droughts, and ocean acidification.
As the International Panel on Climate Change, based on science, concludes:
Scientific evidence for warming of the climate system is unequivocal.
As the evidence provided shows, global warming and climate change, the result of increased CO2 levels in the atmosphere primarily from the burning of fossil fuels starting with the industrial revolution, is happening as we speak, it’s real. Here’s one more piece of evidence, recall the graph for the human population over time, let’s compare that to the atmospheric CO2 levels over the past million years:
Over the past million years, the spike in the world population coincides exactly with the spike in CO2 in the atmosphere. The chances of that happening and being completely unrelated are 1 in a million. Hopefully as a society we will acknowledge climate change and try to mitigate its effects on the environment and society. Climate change is real, the only questions are, to what degree will it impact humanity? And what will we do about it?
Recall that other form of cancer mentioned at the end of Chapter 17 that started as particular companies (the cells), within a particular industry (an organ), that has metastasized now involving all nations and is affecting the entire earth (the host). Read more about this in Chapter 19.
Climate change: How do we know?
The International Governmental Panel on Climate Change published it’s 1435 page Report titled: Climate Change 2014, Mitigation of Climate Change. It was the Working Group III contribution to this fifth assessment Report. This Report is based on science, the study of the real world based on fact and truth, 1300 scientific experts performing and reviewing 1000s of studies and reams of scientific data. Here’s the conclusion of this Report:
‘Mitigation’, in the context of climate change, is a human intervention to reduce the sources or enhance the sinks of greenhouse gases (GHGs). Mitigation is necessary because Working Groups I and II of the Intergovernmental Panel on Climate Change (IPCC) have concluded that the consequences of unchecked climate change for humans and natural ecosystems are already apparent and increasing, and the dangers of irreversible damage are significant. While there are uncertainties, many scenarios lead to substantial climate impacts, including direct harms to human and ecological well‐being that exceed the ability of those systems to adapt fully. The planet as we know it is threatened. The energy supply sector is the largest contributor to global greenhouse gas emissions and therefore offers a multitude of options to reduce GHG emissions. But the stabilization of greenhouse gas concentrations at low levels requires a fundamental transformation of the energy supply system, including the long‐term phase‐out of unabated fossil fuel conversion technologies and their substitution by low‐GHG alternatives. As Renewable Energy penetrations increase, such issues are more challenging and must be carefully considered in energy supply planning and operations to ensure reliable energy supply, and may result in higher costs.
The International Panel on Climate Change issued a Special Report on Global Warming of 1.5 Degrees Celsius in October of 2018, summary below:
Limiting global warming to 1.5°C would require rapid, far-reaching and unprecedented changes in all aspects of society, the IPCC said in a new 2018 assessment. With clear benefits to people and natural ecosystems, limiting global warming to 1.5°C compared to 2°C could go hand in hand with ensuring a more sustainable world.
"One of the key messages that comes out very strongly from this report is that we are already seeing the consequences of 1°C of global warming through more extreme weather, rising sea levels and diminishing Arctic sea ice, among other changes," said Panmao Zhai, Co-Chair of IPCC Working Group I.
The decisions we make today are critical in ensuring a safe and sustainable world for everyone, both now and in the future, said Debra Roberts, Co-Chair of IPCC Working Group II. “The next few years are probably the most important in our history,” she said. “It’s a line in the sand and what it says to our species is that this is the moment and we must act now,” Roberts continued, “This is the largest clarion bell from the science community and I hope it mobilizes people and dents the mood of complacency.”
Christiana Figueres, the former UN climate chief who led the historic Paris agreement of 2015, said: “There is nothing opaque about this new data. The illustrations of mounting impacts, the fast-approaching and irreversible tipping points are visceral versions of a future that no policy-maker could wish to usher in or be responsible for.”
“Limiting warming to 1.5ºC is possible within the laws of chemistry and physics but doing so would require unprecedented changes.” - Jim Skea, Co-Chair of IPCC Working Group III.
The report finds that limiting global warming to 1.5°C would require “rapid and far-reaching” transitions in land, energy, industry, buildings, transport, and cities. Global net human-caused emissions of carbon dioxide (CO2) would need to fall by about 45 percent from 2010 levels by 2030, reaching ‘net zero’ around 2050. This means that any remaining emissions would need to be balanced by removing CO2 from the air. “Limiting warming to 1.5ºC is possible within the laws of chemistry and physics but doing so would require unprecedented changes,” said Jim Skea, Co-Chair of IPCC Working Group III.
Here is NASA’s perspective on Climate Change. All information below is from Global Climate Change – Vital Signs of the Planet at https://climate.nasa.gov/evidence, except the text in italic. Note that on the diagram below CO2 levels are now over 400 parts per million, up from a peaks of about 300 ppm over the last million years.
The temperature of oceans has increased
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