Fourth National Climate Assessment (2 volumes, 2017-2018), by U.S. Global Change Research Program (2009- ) (stable link)
New Online Books
https://onlinebooks.library.upenn.edu/webbin/book//lookupid?key=olbp81200
Free ebooks and useful pdf
Fourth National Climate Assessment (2 volumes, 2017-2018), by U.S. Global Change Research Program (2009- ) (stable link)
New Online Books
https://onlinebooks.library.upenn.edu/webbin/book//lookupid?key=olbp81200