Nov 3, 2017:
The "Fourth National Climate Assessment | Volume I" (NCA4) was released today.
This assessment concludes, based on extensive evidence, that it is extremely likely that human activities, especially emissions of greenhouse gases, are the dominant cause of the observed warming since the mid-20th century. For the warming over the last century, there is no convincing alternative explanation supported by the extent of the observational evidence.
Massive Government Report Says Climate Is Warming And Humans Are The Cause | NPR
Climate Science Report Contradicts Trump Administration Positions | National Geographic
U.S. Government Report Says Climate Change Is Real, and Humans Are to Blame | Scientific American
National Climate Assessment | Wikipedia
Global Change Research Act of 1990 | Wikipedia
U.S. Global Change Research Program | USGCRP
Aug 7, 2017:
An article in The New York Times discusses a draft climate change report conducted by 13 different agencies of the U.S. federal government. Here's a summary of the draft (based on an article on The Hill website):
- Some of the scientists associated with the report fear that the Trump administration will suppress some or all of the report's findings.
- Although the study has been publicly available on a government server for months, the The New York Times article makes it known to the general public.
- The report directly contradicts some of the Trump administration's arguments.
- The study reiterates the need for a major reduction of greenhouse gas emissions.
- Climate change is already affecting people.
Source:
Henry, Devin; Cama, Timothy. (August 8, 2017). "Five takeaways from the federal climate report". The Hill. Retrieved 2017-08-08.
Read the entire report here.
Scientists Fear Trump Will Dismiss Blunt Climate Report | The New York Times
Scientists call out New York Times for incorrect claim about climate report | Fox News