Climate

HEAT ISLANDS  Heat claims more lives than floods, hurricanes and other weather-related disasters. How will cities cope as temperatures rise?  ULTRAFORMA/ISTOCKPHOTO

When days and nights get too hot, city dwellers are the first to run into trouble

sciencenews.org - by AIMEE CUNNINGHAM - April 3, 2018

Since 1986, the first year the National Weather Service reported data on heat-related deaths, more people in the United States have died from heat (3,979) than from any other weather-related disaster — more than floods (2,599), tornadoes (2,116) or hurricanes (1,391). Heat’s victim counts would be even higher, but unless the deceased are found with a fatal body temperature or in a hot room, the fact that heat might have been the cause is often left off of the death certificate, says Jonathan Patz, director of the Global Health Institute at the University of Wisconsin–Madison.

As greenhouse gases accumulate in the atmosphere, heat’s toll is expected to rise. Temperatures will probably keep smashing records as carbon dioxide, methane and other gases continue warming the planet. Heat waves (unusually hot weather lasting two or more days) will probably be longer, hotter and more frequent in the future.

FILE PHOTO: Uninhabitable apartments, in danger of collapsing into the Pacific Ocean, line Esplanade Ave. in Pacifica, California January 26, 2016. REUTERS/Noah Berger/File Photo

CLICK HERE - STUDY - Committed sea-level rise under the Paris Agreement and the legacy of delayed mitigation action

reuters.com - Alister Doyle - February 20, 2018

Sea levels will rise between 0.7 and 1.2 meters (27-47 inches) in the next two centuries even if governments end the fossil fuel era as promised under the Paris climate agreement, scientists said on Tuesday.

Early action to cut greenhouse gas emissions would limit the long-term rise, driven by a thaw of ice from Greenland to Antarctica that will re-draw global coastlines, a German-led team wrote in the journal Nature Communications . . .

 . . . By 2300, the report projected that sea levels would gain by 0.7-1.2 meters, even if almost 200 nations fully meet goals under the 2015 Paris Agreement, which include cutting greenhouse gas emissions to net zero in the second half of this century . . . 

Large swaths of the tropics and beyond may see crushing combinations of heat and humidity in coming decades, according to a new study.  Credit: Ethan Coffel

CLICK HERE - STUDY - Temperature and humidity based projections of a rapid rise in global heat stress exposure during the 21st century

sciencedaily.com - Source: The Earth Institute at Columbia University - December 22, 2017

Summary: Climate scientists say that killer heat waves will become increasingly prevalent in many regions as climate warms. However, most projections leave out a major factor that could worsen things: humidity, which can greatly magnify the effects of heat alone. Now, a new global study projects that in coming decades the effects of high humidity in many areas will dramatically increase.

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Members of the Wyoming Hot Shots firefighting crew battling the Lizard Fire near Willcox, Ariz., in June. Credit Kyle Miller/Wyoming Hot Shots, via Associated Press

CLICK HERE - U.S. GAO - CLIMATE CHANGE: Information on Potential Economic Effects Could Help Guide Federal Efforts to Reduce Fiscal Exposure

nytimes.com - by Lisa Friedman - October 23, 2017

WASHINGTON — Fires, floods and hurricanes are already costing the federal government tens of billions of dollars a year and climate change will drive those costs ever higher in coming years, a new federal study warns.

The report by the Government Accountability Office, Congress’s auditing arm, urges the Trump administration to take climate change risks seriously and begin formulating a response.

The study, scheduled to be released Tuesday, says that different sectors of the economy and different parts of the country will be harmed in ways that are difficult to predict.

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