atmospheric science

Drought and the Collapse of the Maya

James Kershaw discusses whether new data is raining on, or could prove, this fashionable hypothesis Water is essential for life. In this article, we explore the palaeoclimatological evidence linking societal change to periods of drought, with a specific focus on the Maya civilisation. It has been the subject of recent sensationalist news articles, so we ask whether science can conclusively confirm how the great society collapsed. “We definitely consider ourselves

How could feedback loops in the atmosphere lead to runaway environmental disaster?

James Weber explains the role of positive feedback loops and how they could lead to runaway environmental disaster Our atmosphere can be thought of as a single, highly complex system. The complexity arises in part due to the coupling of a vast array of different elements, such as temperature, wind speed, and chemical composition. Should one element be disturbed, others will also change, and this perturbation will propagate throughout the