"It does not undermine the fact that 2016 is the warmest year on record, and 2015 second".
The report predicts that US temperatures will rise at least 2.5 degrees Fahrenheit over the next few decades, with cities experiencing much hotter temperatures.
Alley said the cost of reducing emissions now pales beside the cost of dealing with future climate change.
"For example: Increases in the intensity and frequency of extreme heat including deadly heat waves such as the ones that killed about 40,000 Europeans in 2003 and devastated parts of Russian Federation in 2010 have been convincingly linked to climate change", Oppenheimer added. "There are no alternative explanations".
The report is part of the National Climate Assessment, which is released every four years.
A total of 468 scientists from 64 countries who worked on the report concluded: "Major indicators of climate change continued to reflect trends consistent with a warming planet".
The Times' overzealousness is usually met with wailing and pearl-clutching from the scientific establishment and environmental activists. It's an assessment of the latest and best climate science from around the world by 13 federal agencies, including NASA, the EPA and even the Department of Defense, along with a host of leading U.S. scientists.
It is abundantly clear that the Trump Administration does not believe in science. "Sadly, the Trump presidency has steered the US toward this path".
The draft, a special science section of the Congressionally-mandated quadrennial National Climate Assessment (NCA), has been given to Trump's political appointees for review. That's far higher than normal and "one of the worst years for drought", said report co-author Robert Dunn of the United Kingdom Met Office.
They are only one factor in the warming of the planet.
Earlier this week the Guardian Newspaper reported that it had received evidence that an agency within the US Department of Agriculture had been instructed to replace the expression "climate change" with "weather extremes. when talking to the public or other agencies".
The draft report was published by the New York Times on Tuesday from publicly available information.
In other words, it has passed all the usual tests for scientific integrity.
Richard Alley, another Penn State geosciences professor and expert on the Earth's cryosphere, noted Smith was correct the report was a draft finished some time ago, so it could not include "the absolutely most recent data".
"The final draft is now being reviewed by the administration", Hayhoe said. "The reporter just didn't know and the editors didn't know and once it was brought to our attention, we sorted it out" and ran a correction. "However, the administration may choose to not approve it, or to request changes". And it states that changes in the region could have impacts on the climate around the globe.
Past year also witnessed new records for the greenhouse gases, including carbon dioxide, nitrous oxide and methane.
And it states unequivocally that "greater emissions lead to significantly more warming".
The report said 2016 was the sixth consecutive year in which the global sea level increased compared with the previous year.
According to the report released Thursday, the global land and ocean surface temperature was 0.45˚-0.56˚C above the average for 1981 to 2010. Experts at the Massachusetts Institute of Technology and Loyola Marymount University in Los Angeles found that at 4.5 degrees of temperature rise by 2100, highly populated and impoverished swaths of South Asia would experience heat waves so extreme that human beings would not be able to survive without protection.
"An article on Tuesday about a sweeping federal climate change report referred incorrectly to the availability of the report", TheNYT wrote in its correction issued Wednesday morning.