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LIVE INTERACTIVE LEARNING @ YOUR DESKTOP. Exploring U.S. Regional Climate Change Impacts: Why It Matters to You By: Dr. Steve McNulty and Vicki Arthur. Thursday, April 8, 2010 6:30 p.m. - 8:00 p.m. Eastern time. Section I Exploring U.S. Regional Climate Change Impacts: Why It Matters to You.
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LIVE INTERACTIVE LEARNING @ YOUR DESKTOP Exploring U.S. Regional Climate Change Impacts: Why It Matters to You By: Dr. Steve McNulty and Vicki Arthur Thursday, April 8, 2010 6:30 p.m. - 8:00 p.m. Eastern time
Section I Exploring U.S. Regional Climate Change Impacts: Why It Matters to You Dr. Steven McNulty USDA Forest Service North Carolina State University steve_mcnulty@ncsu.edu
What is Climate Change?? Change in Air Temperature from the average of the 1950’s-1980’s compared to the 1990’s
Earth Moon Green House Gas % in the Atmos 5 0 Distance from Sun (millions of km) 149 149 Day/Night Temperature Range (oC) 107/-153 26-17 Average Temperature (oC) 21 -23
Mercury Venus Green House Gas % in the Atmos <1 95 Distance from Sun (millions of Km) 58 108 Daily Temperature Range (oC) 420/-150 450/450 Average Temperature (oC) 400 450
Poll Question According to the historical data, is climate change cyclical? √ Yes XNo
400,000 Years of Antarctic CO2 and Temperature Change Source: Climate Change Impacts on the US, NAST, 2001
Northern Hemisphere Carbon Emissions Source: Climate Change Impacts on the US, NAST, 2000
Atmospheric CO2 Concentrations Source: Climate Change Impacts on the US, NAST, 2000
Northern Hemisphere Surface Temperature Source: Climate Change Impacts on the US, NAST, 2000
“Simulations of the response to natural forcings alone … do not explain the warming in the second half of the century” SPM Stott et al, Science 2000
“..model estimates that take into account both greenhouse gases and sulphate aerosols are consistent with observations over this period” SPM Stott et al, Science 2000
What other Factors could increase or decrease Global Warming in the long and short term? [Type in the chat]
Section II How is/will climate change be impacting you? Regional impacts
Poll Question Which of the impacts of climate change might have a positive, short term effect? Forest Production Insects Sea Ice thinning
Change in Forest Productivity from 1982 to 1999 Nemani et al., Science June 6th 2003
The increase in growing season length over the last 50 years averaged for eight stations in Alaska having the longest and most consistent temperature records.
Can you think of other potential long and short term impacts of climate change for this region? [Type in the Chat]
Large scale (> 400 ac) Wildfires and Air Temperature From Westerling et al. 2005
Can you think of other potential long and short term impacts of climate change for this region? [Type in the Chat]
Sugar maple Iverson et. al GTR NE265
Percent of the continental USA with a much above normal proportion of total annual precipitation from 1-day extreme events (more than 2 inches or 50.8mm) BW 7 Karl et al. 1996
Loblolly pine Iverson et. al GTR NE265
Timberland Acreage Shift 1993 – 2040: No Climate Change Baseline > 25% DECLINE 5%-25% DECLINE <5% CHANGE 5%-25% INCREASE