Modeling ecological processes at global scales is complicated by the fact that available underlying spatial and temporal data often incorporate enormous uncertainty. For example, the WorldClim data set (which has been cited over 2000 times) offers 1-kilometer resolution globally whether the pixel …
A changing climate effects the availability of water, agriculture, and virtually everyone on the planet. To predict changes in vegetation cover and adapt water usage appropriately it’s necessary to constrain changes in evaporative flux. Measuring evaporation is more challenging than other components of the hydrologic
The internet’s vast quantities of information and its popularity among people all over the globe represent a tempting and enormous data pool for researchers. Political strategists, economists, and epidemiologists mine internet usage data to learn about human behaviors and cultural trends, producing interesting results (though sometimes flawed; see Butler 2013). Could scientists who study climate change use similar online data-mining tools to better understand and track the effects of climate change? A recent paper by Proulx and colleagues argues just that.
Trude Storelvmo delivers a lecture entitled, “The Impact of Aerosols on Climate Sensitivity Estimates”, at the YCEI conference “Uncertainty in Climate Change: A Conversation with Climate Scientists and Economists”.
Kevin Trenbeth, National Center for Atmospheric Research, delivers a lecture entitled, “Ocean Heat Uptake: The Apparent Hiatus in Global Warming and Climate Sensitivity” during YCEI’s conference, “Uncertainty in Climate Change: A Conversation with Climate Scientists and Economists”
Klaus Keller, Penn State University, delivers a lecture entitled, “Deep Uncertainty of Climate Sensitivity Estimates: Sources and Implications”, during the YCEI conference, “Uncertainty in Climate Change: A Conversation with Climate Scientists and Economists”.
In a simple but important analysis, Mora and colleagues analyzed climate projections to identify when future warming will exceed the climate envelope of the past 150 years. They used multiple models (39) and seven climate variables (such as near-surface temperature …
Fran Ulmer reminds people that “Antarctica has penguins. The Arctic has people.” Ms. Ulmer was a University of Alaska Chancellor and Lieutenant Governor of Alaska from 1994-2002. She talks about the effects of climate change in Alaska where average seasonal temperatures have already increased by 4 degrees in summer and 7 degrees in winter. Her talk is wonderful for anyone who forgets how very different the situation is at the Earth’s poles: Antarctica is uninhabited land surrounded by an ocean, whereas the Arctic is an ocean surrounded by 8 nations.
William Nordhaus, Yale University, gives a lecture during the YCEI conference, “Uncertainty in Climate Change: A Conversation with Climate Scientists and Economists.” Explaining that he’s an economist, Nordhaus apologizes and says that what’s really relevant to the discussion is an understanding of statistics which is the subject of his talk.
Chris Forest, Pennsylvania State University, discusses estimations of climate sensitivity and testing of models against what is known about the past thousand years.