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2°C Or Not 2°C: Why We Must Not Ditch Scientific Reality In Climate Policy

Global-mean surface temperature 1880-2013. Grey line shows annual values, and the smoothed blue line highlights the long-term evolution. (Via RealClimate using NASA data)A new Comment piece in Nature argues we should “Ditch the 2 °C warming goal” as...

Posted October 3, 2014    

National Science Foundation: Record California Drought Directly Linked To Climate Change

NSF: “The drought crippling California is by some measures the worst in the state’s history.” CREDIT: NOAAA Stanford study funded by the National Science Foundation (NSF) confirms a growing body of research that finds “The atmospheric conditions...

Posted October 2, 2014    

NOAA: With Hottest August On Record, 2014 Takes Aim At Hottest Year On Record

Last month was the warmest August since records began being kept in 1880, the National Oceanic and Atmospheric Administration (NOAA) reported Thursday. NOAA also projected out scenarios for the rest of the year making clear that 2014 is going to be...

Posted September 20, 2014    

$18 Trillion Windfall: Health And Productivity Benefits of Efficiency Top Energy Savings

A major report by the global body responsible for energy analysis finds the total benefits from energy efficiency upgrades equals — and often exceeds — the energy savings. The 232-page International Energy Agency report upends decades of...

Posted September 17, 2014    

Here's How Global Warming Is Already Worsening Extreme Deluges In The U.S.

Decadal index of two-day precipitation totals that are exceeded on average only once in a 5-year period. Changes are compared to the period 1901-1960. As data show, such once-in-five-year events have become much more common (via NCA.)One of the most...

Posted September 11, 2014    

Global Warming Boosts Chances of Civilization-Threatening Megadroughts Here And Abroad

Warning buoy sits on the dry, cracked bed of California’s Lake Mendocino. CREDIT: AP Photo/Rich Pedroncelli, fileBy taking no serious action to slash carbon pollution and put the world on a path to 2°C warming (or less), humanity is voluntarily...

Posted September 5, 2014    

Climate Scientists Spell Out Stark Danger And Immorality Of Inaction In New Leaked Report

Humanity’s choice (via IPCC): Aggressive climate action ASAP (left figure) minimizes future warming and costs a mere 0.06% of annual growth. Continued inaction (right figure) results in catastrophic and irreversible levels of warming, 9°F over much...

Posted August 29, 2014    

Greenland And West Antarctic Ice Sheet Loss More Than Doubled In Last Five Years

Map of elevation change in Greenland between January 2011 and January 2014. Red indicates area where the ice sheet lost mass in this period, while blue represents ice gains. Map: Helm et al.A new study finds that both the Greenland ice sheet and...

Posted August 28, 2014    

Tesla Trumps Toyota 3: Why Electric Vehicles Are Beating Hydrogen Cars Today

While electric vehicles (EVs) have experienced a marketplace renaissance in the last decade, hydrogen fuel-cell vehicles (FCVs) have not. Multiple models of EVs (like the Tesla and Nissan Leaf) and plug-in EVs (like the Chevy Volt) are selling in...

Posted August 27, 2014    

Jet Stream Changes Driving Extreme Weather Linked Again To Global Warming, Arctic Ice Loss

California is suffering through its worst drought on record, while the East Coast sees off-the-charts flooding. Both types of extremes are worsened by global warming as scientists have explained for decades.But in recent years you may have noticed a...

Posted August 21, 2014    

Tesla Trumps Toyota Part II: The Big Problem With Hydrogen Fuel Cell Vehicles

Tesla’s Model S. CREDIT: ShutterstockThe biggest problem hydrogen fuel cell vehicles face is that they deliver no obvious major consumer (or societal/environmental) benefit compared to the competition, but have a bunch of obvious consumer defects....

Posted August 16, 2014    

Bad News For California: NOAA Lowers Chance Of El Niño To 65%, Predicts A Weak One

El Niño visualization (via NOAA)The best chance for ending the brutal California drought — a big El Niño — seems to be disappearing.Back in the spring, you may recall, NOAA said the chances of an El Niño developing this year were at almost 4 out of...

Posted August 14, 2014