AGU 2015: The impacts of heat stress on densely populated regions in the 21st century

Globally, heat kills more people than any other weather-related event. With temperatures and humidity expected to increase in the coming decades, heat stress is projected to have increasingly severe impacts on many regions of the world. Here, researchers estimate the global exposure to fatal heat stress throughout the 21st century and its effects on human…

AGU 2015: Alaska’s thawing permafrost Latest results and future projections

Alaska’s permafrost is starting to thaw as the climate warms, and scientists project there will be even greater thawing of the frozen soils in the coming decades, releasing carbon into the atmosphere, and impacting ecological systems and infrastructure. A panel of permafrost experts will unveil new findings about permafrost degradation in Alaska, where permafrost covers…

AGU 2015: Jennifer Francis recent studies on Weather Blocking Patterns

Recent Changes in Blocking Characteristics Assessed Using Self-Organizing Maps Speaker: Jennifer Ann Francis Blocking anticyclones are known to be associated with persistent weather patterns that often lead to extreme weather events. An outstanding question, however, is whether the frequency and/or intensity of these dynamical features are changing in response to human-caused climate change, and in…

New Zealand’s climate scientist Dr David Wratt talks climate change

One of New Zealand’s leading climate scientist, Dr David Wratt, answers a series of questions about climate change in this new video series by the National Institute of Water and Atmospheric Research (NIWA). Climate change is often described as the world’s most serious environmental issue. It is already having an impact in many areas of…

What Exxon Knew

Newly released documents show that scientists at Exxon Oil Corporation conducted research on climate change and the greenhouse effect in the late 1970s and early 1980s. Their conclusions were in accord with mainstream scientific groups in academia, NASA, NOAA, and the Department of Energy, showing that global warming posed a serious problem, with potential “catastrophic…