4 stories tagged ‘Global climate change’
A report co-authored by Professor Michael McElroy and D. James Baker, a former administrator of the National Oceanic and Atmospheric Administration, connects global climate change, extreme weather, and national security.
Record warmth in 2010 and 2012 resulted in similarly extraordinary spring flowering in the eastern United States — the earliest in the more than 150 years for which data is available— researchers at Harvard University, Boston University, and the University of Wisconsin have found.
Harvard researchers compiled ice and sedimentary core samples collected from dozens of locations around the world, and found evidence that while changes in Earth’s orbit may have touched off a warming trend, increases in CO2 played a far more important role in pushing the planet out of the ice age.
Reducing dependence on foreign oil and reducing greenhouse gases are the two major challenges facing U.S. energy systems, a visiting federal energy official told a Harvard audience.