Extreme Weather From Mother Nature

Flooding, tornadoes, hail and fire are in the forecast — and with costly outcomes. ABC News: ‘Scientists Say Human-Caused Climate Change Is … Creating More Heat Waves, Droughts And Intense Downpours’ Here’s the transcript: And once again tonight, flooding, tornadoes, hail, and fire as the nation takes another punch from mother nature and climate. ABC’s…

Arctic Amplification(Extreme Weather): Jennifer Francis June 6, 2013

This video is part of a Climate Desk event “Climate Desk Live 06/06/13: The Alarming Science Behind Climate Change’s Increasingly Wild Weather” featuring top climate researcher Jennifer Francis. Watch the full event (including Stu Ostro on atmospheric thickness) here . Event website http://climatedesk.org/2013/05/climat… For more detail on Francis’s research, see: Arctic Warming Favors Extreme, Prolonged Weather Events…

The Alarming Science Behind Climate Change’s Increasingly Wild Weather: Ostro And Francis On Video

By Joe Romm / Climate Progress: Earlier this month, Chris Mooney moderated a terrific Climate Desk event featuring top climate researcher Jennifer Francis along with senior Weather Channel meteorologist (and former skeptic) Stu Ostro. Climate Desk summarizes their findings: Ostro’s observations suggest that global warming is increasing the atmosphere’s thickness, leading to stronger and more persistent ridges…

Canada Calgary Aerial View + Bob Sanford speaks Floods June 22, 2013

Live stream video editing by http://ClimateState.com Aerial view footage from CTV June 22 2013, via live stream excerpts Excerpts from podcast interview with Bob Sanford and host Anna Maria Tremonti from the The Current, episode “Severe flooding in southern Alberta” from June 21, 2013 Severe flooding in southern Alberta Robert Sandford is the EPCOR Chair in…

May 2013 Earth’s 3rd Warmest May; Central European Floods Cost $22 Billion

By Jeff Masters / Wunderground: May 2013 was the globe’s 3rd warmest May since records began in 1880, according to NOAA’s National Climatic Data Center (NCDC). NASA rated it the 10th warmest May on record. The year-to-date period of January – May has been the 8th warmest such period on record. May 2013 global land…

Canada Alberta Calgary Floods June 20, 2013

From last week Fort McMurray Flooding Emphasizes Tar Sands’ Threat to Mackenzie River Basin Desmog Blog – June 13, 2013: Record flooding in the heart of the Alberta tar sands dramatically illustrates their threat to Canada’s ‘Serengeti’, the Mackenzie River basin. Only days before this week’s flooding in Fort McMurray, a panel of international science…

Ups-and-downs of Indian monsoon rainfall likely to increase under warming

PIK June 20, 2013: Day-to-day rainfall in India might become much more variable due to climate change – potentially putting millions of poor farmers and the country’s agricultural productivity at risk. The Indian monsoon is a complex system which is likely to change under future global warming. While it is in the very nature of…

Climate Change, Migration and Security in South Asia

South Asia will be among the regions hardest hit by climate change. Higher temperatures, more extreme weather, rising sea levels, increasing cyclonic activity in the Bay of Bengal and the Arabian Sea, as well as floods in the region’s complex river systems will complicate existing development and poverty reduction initiatives. Coupled with high population density…

Heatwaves blamed on Global Warming

Unusually high frequency points to human influence | NASA climatologist James Hansen made headlines during the US heatwave of 1988, declaring in testimony to Congress and during interviews on prime-time television that a build-up of greenhouse gases was increasing the probability of weather extremes. Now, as much of the United States sizzles through another torrid…

Fresh water from rivers and rain makes hurricanes, typhoons, tropical cyclones 50 percent more intense

An analysis of a decade’s worth of tropical cyclones shows that when hurricanes blow over ocean regions swamped by fresh water, the conditions can unexpectedly intensify the storm. Although the probability that hurricanes will hit such conditions is small, ranging from 10 to 23 percent, the effect is potentially large: Hurricanes can become 50 percent…

Cyclone Activity Has Been Intensified in the Arctic

Cyclones are key weather elements that make a major contribution to climate trends and variability, and that also bring intense high-frequency changes in wind, temperature and precipitation. Given the recent dramatic change of the Arctic climate, Arctic cyclone activity has attracted an increasing amount of attention. We investigated the Arctic cyclone activity in the context…

Changing Jet Streams May Alter Paths of Storms and Hurricanes

Hurricanes, whose development tends to be inhibited by jet streams, may become more powerful and more frequent as the jet streams move away from the sub-tropical zones where hurricanes are born. Stanford, CA—The Earth’s jet streams, the high-altitude bands of fast winds that strongly influence the paths of storms and other weather systems, are shifting—possibly…

Ozone Levels Drop When Hurricanes Are Strengthening

Hurricanes and Ozone June 11, 2005 Ozone levels drop when a hurricane is intensifying. Xiaolei Zou and Yonghui Wu, researchers at Florida State University found that variations of ozone levels from the surface to the upper atmosphere are closely related to the formation, intensification and movement of a hurricane. They studied ozone levels in 12 hurricanes…