Jennifer Francis: Wacky Weather and disappearing Arctic Sea Ice are they connected?

Dr. Jennifer Francis – Rutgers University “Extreme weather events are increasing in frequency and intensity all around the northern hemisphere.” Concurrently, Arctic sea ice is in an accelerating decline, the entire surface of Greenland melted for the first time in at least 150 years, glaciers are disappearing around the world, and snow cover on Arctic…

Kevin Trenberth: How To Relate Climate Extremes to Climate Change

Public lecture by Distinguished Senior Scientist at the Climate Analysis Section at the National Centre for Atmospheric Research (NCAR), Kevin Trenberth held at UNSW on October 16, 2012. “Heavy precipitation days are increasing even in places where precipitation is decreasing.” Framing the way to relate climate extremes to climate change Abstract The atmospheric and ocean environment…

Residents look on as a back fire set by firefighters consumes the hillside behind their homes as a wildfire burns on May 2, 2013 in Newbury Park, Calif. (Photo by Kevork Djansezian/Getty Images)

Fires, Floods, and Heavy Snow: an Extreme May Weather Situation

Dr. Jeff Masters / via Wunderground – A highly unusual jet stream pattern is bringing a bizarre combination of heavy May snows, flooding, extreme fire danger, and well below average severe thunderstorm activity to the U.S. A strong “blocking” high pressure system has set up over Greenland, blocking the normal west-to-east progression of weather systems. A truly unusual situation has developed where the blocking high has forced a low pressure system near Greenland to move southwestwards to a point just off the New England coast. The blocking high has also forced an unusually sharp southwards dip in the jet stream over the Central U.S., where all-time May snowfall and cold temperature records are being set.

NASA: Warming-Driven Changes in Global Rainfall


By Kathryn Hansen NASA Goddard Space Flight Center. A NASA-led modeling study provides new evidence that global warming may increase the risk for extreme rainfall and drought.

Model simulations spanning 140 years show that warming from carbon dioxide will change the frequency that regions around the planet receive no rain (brown), moderate rain (tan), and very heavy rain (blue). The occurrence of no rain and heavy rain will increase, while moderate rainfall will decrease.

This is Not Cool. Heatwave 2011.

nhttps://www.youtube.com/watch?v=YVh7z-0oo6o NOAA Fingerprints of human caused warming SkepticalScience US Global Change Research Program: Impacts in the United States http://globalchange.gov/what-we-do/as… p. 123 – great plains January to June global temps “The January–June 2011 map of temperature anomalies shows that, for the first half of the year, anomalous warm temperatures were present over much of the world,…

Does Arctic Amplification Fuel Extreme Weather in Mid-Latitudes?

Jennifer Francis, Rutgers University, 25 January 2012. The “Arctic Paradox” was coined during recent winters when speculations arose that the dramatic changes in the Arctic may be linked to severe snowstorms and cold temperatures in mid-latitudes, particularly along the U.S. east coast and in Europe. Recent studies have illuminated these linkages. Evidence is presented for…

Discovery Channel – Global Warming, What You Need To Know, with Tom Brokaw

Global warming is the rise in the average temperature of Earth’s atmosphere and oceans since the late 19th century and its projected continuation. Since the early 20th century, Earth’s mean surface temperature has increased by about 0.8 °C (1.4 °F), with about two-thirds of the increase occurring since 1980. Warming of the climate system is…

Global Warming changes the Jet Stream, cause of more Extreme Weather

See Part One here YouTube One of the most confusing effects of climate change is the increasing incidence of weather extremes, that may include hot, AND cold, snow and rain, wet and dry, drought and flood. Scientists have been examining this problem intensely over recent years, as Europe, America, and Asia have all been subject…

Stefan Rahmstorf: Impacts of Climate Change

In this Climate Change lecture Prof. Stefan Rahmstorf deals with the impacts (with a focus on extreme events and Sea-Level Rise) and the possibilities for holding Global Warming below 2°C. Watch part one “The Basics of Global Warming” Part three “Interview” These lectures form part of a broader lecture course called World in Transition. It…