Kim Cobb on El Nino, geochemistry and women in science

Obsessed by El Niño

Corals and speleothems are some of our most useful recorders of past climate variability. The spectacular speleothem records from eastern China, for example, have been instrumental in building our understanding of past variations in the East Asian Monsoon. But as is the case for most any paleoclimate proxy, corals and speleothems do not record a direct record of … well, anything.

Continue reading →

Mat Collins on climate models and El Nino

Understanding climate models

If you’ve heard about any climate cycle, it’s probably the El Niño Southern Oscillation, or ENSO. 2015/2016 is looking like it might bring a record El Niño, and media coverage is, for climate, pretty remarkable.

The coverage is understandable, as weird things happen during big El Niños. The eastern tropical Pacific Ocean is anomalously warm during boreal winter. Deep convection moves away from the Western Pacific Warm Pool, and other bits of the climate system tend to shift to unusual states.

Continue reading →