Growth of CO₂ in the atmosphere is accelerating. The image shows the growth rate in parts per million (ppm), based on annual Mauna Loa data (1959-2017), with a 4th-order polynomial trend added. While no data are yet available for the year 2018,...

Hurricane ModerationBy Stephen SalterThe formation of a hurricane depends on many factors, including atmospheric water vapour, distance from the equator and the recent history of wind patterns. But an essential requirement is a high sea surface...

Blue Ocean Event as part of four Arctic tipping pointsWhat will be the consequences of a Blue Ocean Event, i.e. the disappearance of virtually all sea ice from the Arctic Ocean, as a result of the warming caused by people?Paul Beckwith discusses...