climate change

Storm surges, one-off events associated with storms that can cause flooding, are rare and highly destructive phenomena. A paper published this week in Nature finds that they have increased since 1960, comparable to the increase in average sea level rise over the same period.

The authors, led by Spaniard Francisco Calafat of the National Oceanography Centre in Liverpool, UK, statistically analyse observations of extreme tides from 79 tide gauges on European coasts over the period 1960-2018, and compare them with climate models.

Their results point to an increase in extreme sea levels in the future, something the authors say has implications for coastal planning. So far, the most widely accepted hypothesis is that the frequency of such extreme storm surges would not increase.

The current climate crisis is not only leaving us with a historically warm winter and a decade of record temperatures, but is overlapping with an almost unprecedented energy crisis. Securing energy supplies in a sustainable way is now a challenge where the war in Ukraine adds to the complexity.

The weekend saw record temperatures in both the Arctic and Antarctica, up to 40°C above normal for this time of year.

Japan's IBUKI greenhouse gas observation satellites (GOSAT) have just announced the detection of a sharp annual increase in the average atmospheric methane concentration in 2021, the largest since 2011. European (ESA) and US (NASA) space agencies, as well as ground stations, have also detected spikes.

The Intergovernmental Panel on Climate Change (IPCC) is meeting between 21 March and 1 April to approve the study on measures to curb the climate crisis, on which more than 200 authors from all over the world have been working for three years. The text will be published on 4 April.