News and highlights

EVENTS

GENERAL ASSEMBLY 2022

Located in Sorbonne University, Paris France, the XAIDA’s First General Assembly will take place from 12 to 14 October 2022, in an hybride format.

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BRIEFS

The “Medicanes” (Mediterranean Hurricanes) and climate change

Medicanes are Mediterranean cyclones whose characteristics resemble those of tropical cyclones. They are often associated with hurricane-force winds and heavy precipitation. With a frequency of 1-2 per year, it is a challenge to determine whether their frequency should increase or decrease in a warmer world. Their intensity is however projected to increase due to the warming projections for the Mediterranean sea, the main source of energy for medicanes.

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EARLY 2022 HEAT WAVES IN EUROPE AND CLIMATE CHANGE

The summer of 2022 was pounded by a series of heat waves in Europe. The first, an outstanding early heat wave, took place in mid-June 2022 across Europe, mostly hitting Spain, France, but also other parts of Europe. The early character of the heat, in a crucial season for agriculture and ecosystems, is likely to have induced specific impacts on health and agriculture, which will need to be assessed. During the XAIDA Summer School in Trieste, students have studied the relation of this heatwave to climate change.

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CYCLONES AND CLIMATE CHANGE: WHAT DO WE KNOW? THE CASE OF CYCLONE BATSIRAI

Tropical Cyclone Batsirai has left Madagascar after killing dozens, displacing tens of thousands and devastating the island’s agriculture, already suffering from drought hard hitting a vulnerable population, Unicef said, adding that many of the victims are probably children, who make up more than 50% of Madagascar’s population. Batsirai hit eastern Madagascar with a Category 3 strength on the evening of Saturday 5 february 2022, bringing heavy rains and winds of 165 km/h. The city of Mananjary in the east of the country “has been completely destroyed”, one of its residents said.

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TORNADOES AND CLIMATE CHANGE: WHAT WE KNOW

Devastating tornadoes in central U.S.A. took place on 10 and 11 December 2021, with widespread destruction of homes, infrastructures, and large parts of some midwest cities. Over a hundred people lost their lives and many more were injured. Given that we already live in a world of 1.2°C global warming, such extreme events immediately raise the question whether and to what extent climate change altered the likelihood and intensity of these devastating storms. Here we briefly summarize the current scientific knowledge on such links.

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