omaha393 writes: Secretary of Defense James Mattis identified climate change as a national security risks to the Senate Armed Services Committee, according to unpublished comments sent to the Senate Armed Services Committee. Secretary Mattis joins several scientific and policy experts as well as the Pentagon Study urging action to address climate change.
While Secretary Mattis’ position seems at odds with other members of the White House cabinet, this is hardly the first time Mattis has offered contrary opinions on major policy decisions.
Other members of the cabinet, including Secretary of Energy Rick Perry, have changed their tones on the subject, now supporting the evidence that man-made climate change is real and may pose a threat to national security. How climate change will be addressed under the new administration remains to be seen, as advisors the White House have indicated the administration intends to pull out of the Paris Climate Accords and the recently revealed "budget blueprint" seeks to slash funding to climate change alleviation.
DeviceGuru writes: Sounds crazy, but as with all of University of Cambridge Prof. David J. C. MacKay's thinking, there's logic to back it up, along with a welcome dollop of British wit. His new book, "Sustainable Energy Without the Hot Air" (available free online and in hard copy and released under a Creative Commons license), is a roadmap for kicking our fossil fuel habit. Along the way, MacKay demolishes "codswallop" arguments on both sides of the debate, and explains why tripling electricity demand is the solution.
In MacKay's holistic approach, transportation and space heating move from fossil fuels to renewable electricity. The beauty of consuming very large amounts of extra electricity for transport and heating is that these two forms of demand are "easily-switch-off-and-on-able," MacKay says. A smart grid that controls vehicle charging and pumping into heat-stores matches demand to renewables' fluctuating supply, overcoming one of their biggest drawbacks.
A recent review in Science magazine (PDF download) calls the book "a must-read analysis" and "found MacKay's book by turns exhilarating and terrifying."