Changes in the heating and cooling degree days are another likely extreme temperature - related effect of future greenhouse warming. (ipcc.ch)
Our need to limit future greenhouse warming is proportional to how severe we think the impacts of climate change will be. (giss.nasa.gov)
A large enough number of such roofs could «completely offset warming due to urban expansion and even offset a percentage of future greenhouse warming over large regional scales,» says sustainability scientist Matei Georgescu at Arizona State University, who lead the research. (scientificamerican.com)