Climate Change May Broil Cities

Got a summer home in Bismark yet?

clipped from www.scientificamerican.com SWELTERING CITY: New models suggest that climate change will cause average temperatures in cities to rise; cooler nights will become less frequent. ISTOCKPHOTO Cities were already known to retain more heat than the rural environments that surround them, but new modeling from researchers in the United Kingdom now suggests that urban areas are also more sensitive to changes in climate. Furthermore, they will experience greater increases in average temperature with rises in atmospheric carbon dioxide, and the cooling effects of night will become more of a memory than a reality. Meanwhile, Washington, D.C. -- where Congress is debating over whether to pass a climate bill -- is getting a memorable preview of what new computer models are predicting. Last week's temperatures broke a 100-year record, and forecasters expect this June will be the hottest ever recorded in the area.

Original content Bob DeMarco, the Photovoltaic Solar Power

Google Lat Long Climate change in our world

Of the challenges surrounding global climate change, communicating its potential impact and increasing public awareness of the scientific research undertaken to monitor and model its effect on society are quite pressing.

clipped from google-latlong.blogspot.com

Google Earth Outreach,

British Antarctic Survey

Google Earth Outreach Showcase

Climate Change in Our World and Climate Change in Our World, Antarctica.

Climate

The Arctic in Transition.

clipped from dotearth.blogs.nytimes.com Enshrined in history as an untouchable frontier, the Arctic is being transformed by significant warming, a rising thirst for oil and gas, and international tussles over shipping routes and seabed resources. The Big Melt series Postcards from the Arctic Classroom resources The Arctic Rush

Arctic Is Screaming; Global Warming May Have Passed Tipping Point

clipped from www.foxnews.com An already relentless melting of the Arctic greatly accelerated this summer, a warning sign that some scientists worry could mean global warming has passed an ominous tipping point. One even speculated that summer sea ice would be gone in five years. Greenland's ice sheet melted nearly 19 billion tons more than the previous high mark, and the volume of Arctic sea ice at summer's end was half what it was just four years earlier, according to new NASA satellite data 2007 shattered records for Arctic melt in the following ways: 552 billion tons of ice melted this summer from the Greenland ice sheet A record amount of surface ice was lost over Greenland this year Alaska's frozen permafrost is warming White sea ice reflects about 80 percent of the sun's heat off Earth Earth has hit one of his so-called tipping points "At this rate, the Arctic Ocean could be nearly ice-free at the end of summer by 2012, much faster than previous predictions."