Presentation on theme: "Global Warming L. David Roper Professor Emeritus of Physics Virginia Polytechnic Inst. & St. Univ. Global."— Presentation transcript:
Global Warming L. David Roper Professor Emeritus of Physics Virginia Polytechnic Inst. & St. Univ. firstname.lastname@example.org http://arts.bev.net/RoperLDavid Global Warming may be the greatest challenge that humans have encountered in the last 10,000 years.
Global Dimming due to pollution by burning oil. Global Dimming due to pollution by burning coal.
Last 200 Years Earth Temperature and Population Data The rapid temperature increase is very similar to the rapid world population increase. The root problem is too many people caused by the availability of easy energy! Mother Nature will take care of the problem if humans do not.
The Medieval Warm Period was not warmer than today!
Farming began. Next Ice Age should have started here. The Climatic Optimum was not warmer than today!
Wild Card of Arctic Carbon Release ~Half of Arctic carbon is released. Puts ppmv well into disaster zone.
Wild Card of Arctic Carbon Release Peak temperature is about 1.8°C above 1700 temperature and drops slightly.
Saturation and Arctic Carbon Release Over 1000 ppmv peak at ~2150!!
Saturation and Arctic Carbon Release Dotted curve is for climate sensitivity changing from 3 to 4 with time.
Immediate Action Needed! Move to electric rail transportation for freight and mass people movement asap. Change personal transportation to biofueled plug-in hybrid and electric vehicles asap. Make biofuels using only biofuels. Build all new buildings with solar collectors and gardens on their roofs and with high energy efficiency. Do not build any more coal power plants. Use petroleum only for chemicals, not to burn.
Human-made Global Warming is challenging our Homo-sapiens brain to recognize the truth of climate science, make plans to mitigate Global Warming and put the plans into action. We are having trouble doing all three.