climate change

climate change

climate change

Reactions: July heatwaves in Europe and North America "almost impossible" without climate change

An attribution study by World Weather Attribution (WWA) concludes that the heatwaves in Europe and North America this July would have been "almost impossible" without climate change. Over the past few weeks, southern Europe, parts of the United States, Mexico and China have experienced severe heatwaves with temperatures exceeding 45 °C. The WWA report notes that in China the heatwave was at least 50 times more likely due to the climate crisis.

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Anthropocene: what it is and why it generates debate among scientists

The term Anthropocene describes the profound changes on Earth due to human activities in the past decades. The concept comes from geology but has spread to other areas and has sparked controversy within science. In this article, we provide some keys to understand what the Anthropocene is, and why there has been debate in recent days surrounding its possible declaration.  

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Reactions: record heat in summer 2022 caused more than 61,000 deaths in Europe, more than 11,000 of them in Spain

The heat waves that took place in Europe during the summer of 2022 were associated with more than 61,000 deaths on the continent, more than 11,000 of them in Spain. These are the results of a modelling study published in the journal Nature Medicine and led by ISGlobal researchers.

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Reactions: World Meteorological Organisation declares onset of El Niño conditions

The World Meteorological Organisation (WMO) has declared the onset of El Niño conditions on Tuesday. "The declaration of El Niño by the WMO is the signal for governments around the world to mobilise preparations to limit the impacts on our health, our ecosystems and our economies," said WMO Secretary-General Petteri Taalas. According to the WMO statement, El Niño conditions have developed in the tropical Pacific for the first time in seven years, setting the stage for a likely rise in global temperatures and altered weather and climate patterns.

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Reactions: climate change will increase extreme rainfall and decrease snowfall events

A study concludes that climate change will lead to less precipitation in the form of snow and more extreme rainfall events, especially at high altitudes in the northern hemisphere, increasing the risk of floods, landslides and infrastructure damage. According to the authors, this is the first time this risk of extreme precipitation in liquid and solid form has been studied separately. Their calculations indicate that for each degree of temperature increase, the risk of extreme rainfall in high-altitude regions will increase by 15 %. The authors publish their results in the journal Nature.

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Reactions: Study pushes possibility of ice-free Arctic Septembers to 2030

A model-based study estimates that there will be ice-free Arctic Septembers about a decade earlier than previously predicted. The possibility of this happening between 2030 and 2050 exists even in low-emissions scenarios, which is a more pessimistic estimate than the last IPCC report. The results are published in the journal Nature Communications.

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What is El Niño and what will it mean for Spain this summer and autumn?

After three years in which the planet's climate has experienced a phenomenon known as La Niña, in 2023 it gives way to its opposite, El Niño. This has led the World Meteorological Organization to warn that this event, added to climate change, could cause the 1.5 °C limit to be exceeded in the next five years. But what are these "children", how do they affect Spain, how long will they last?

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Extreme heat and urban health: how to adapt our cities to climate change

Heat waves and other events accentuated by climate change affect health, especially for the most socially vulnerable people. To counteract these effects, mitigation and adaptation plans for cities are designed based on scientific evidence, the implementation of which belongs to the local political sphere. Two experts in urban health and climate governance analysed these problems and their possible solutions in a briefing organised by SMC Spain.

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Reaction: more than half of the world's great lakes have lost water in the last three decades

Fifty-three per cent of the world's largest lakes and reservoirs have lost water between 1992 and 2020, according to a study combining satellite observations, climate data and hydrological models. These results suggest a global trend towards more extensive desiccation than previously thought, in both arid and humid areas, the research team says in the journal Science. The authors also share an online map that includes trends for large freshwater reservoirs in Spain, such as the Iznájar (Córdoba), Mequinenza (Zaragoza) and Valdecañas (Cáceres) reservoirs.

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