The report's content is at odds with the Trump administration's position - and at times rejection - of the scientific community's belief that human activity causes climate change. Globally, it is extremely likely that humans are responsible for over half the mean temperature increase since 1951, the authors say. We ask that any comments by climate-change denialists be flagged for moderation.
"It's kind of incomprehensible to me that there is still any debate by anybody in government that the climate system is changing, and it's changing primarily because of human activities", he said.
"Evidence for a changing climate abounds, from the top of the atmosphere to the depths of the oceans", a portion of the study reads. Extreme cold waves, it says, are less common since the 1980s, while extreme heat waves are more common. One government scientist who worked on the report told the Times that he and his colleagues are anxious that it will be suppressed.
The U.S. State Department is advising its diplomats to sidestep questions from foreign governments about the Trump administration's stance on the Paris climate deal.
The report concludes that the world has already been irreversibly damaged by climate change, and that even if humans stopped making greenhouse gas immediately the planet would still have warmed by 0.3C.
The study finds that the average temperature in the United States has been rising quickly since 1980, and that it is now hotter than any other time in the last 1,500 years. Considering the administration's counter-stance to the existence and ill effects of climate change, let alone the president's decision to exit the Paris Climate Accord, Lauer's question for the former SC governor put her on the spotlight. It's true the United States was working toward zero emissions at a quicker rate than countries like China, but the USA also has much more infrastructure already in place to aid in achieving that goal. After discussing a draft report leaked to the New York Times, Good Morning America's George Stephanopoulos sneered, "No word yet on whether they will suppress, dismiss, or endorse the report".
"With significant reductions in emissions of greenhouse gases, the global annually averaged temperature rise could be limited to 3.6 degrees Fahrenheit or less". Average sea levels around the world have risen by about seven to eight inches since the beginning of the 20th century, with about three of those inches occurring since 1993.
Congress requires the report, but the White House greatly influences how much fanfare attends its release, said Paul Bledsoe, a climate adviser under President Clinton who is now a lecturer at American University's Center for Environmental Policy.
Hayhoe added: "Side-by-side comparison shows that @nytimes has public review version of our new climate sci report - so, no leak".
The Paris climate accord, in which almost 200 countries participate, includes an agreement to cut or limit fossil fuel emissions.