global warming

global warming

global warming

Heat culture in Spain: 20 years of prevention plans to face the extreme temperatures

August 2003 was the month of the heatwave that killed 70,000 people in Europe. In France, with 14,800 deaths, the Minister of Health resigned, and in Spain, with 6,500, the first prevention plan for the extreme heat was put in motion, which came into force in 2004. Two decades later, campaigns and preventive measures in social services, nursing homes, and hospitals have generated the so-called "heat culture," and although temperatures continue to rise due to climate change, this adaptation is limiting its impact.

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Too much uncertainty to predict when climate tipping points will occur, warns study

Climate tipping points are thresholds at which elements of the Earth could reach a point of no return, accelerated by climate change and with consequences for the rest of the planet. These drastic changes could affect, for example, the Atlantic Meridional Circulation (AMOC), polar ice sheets or tropical rainforests. A study published in Science Advances concludes that there is too much uncertainty to extrapolate historical data and reliably estimate when these inflections will occur.
 

 

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Increasing proportion of older people exposed to heat that is hazardous to their health

Twenty-three per cent of the world's population over the age of 69 will be living with acute heat exposure by 2050, compared to 14 per cent in 2020, according to a study published in Nature Communications. The research highlights southern Europe, parts of North and South America, Southeast Asia and all of Australia as areas of ‘increasing stress’, where higher heat exposure overlaps with an increasingly ageing population. The effects will be most severe in Asia and Africa, according to the study. 

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The summer of 2023 the warmest in 2,000 years in the northern hemisphere, according to a study

An international group of researchers analyzed multiple data sets with current measurements and historical reconstructions. Their research concludes that, in the extratropical regions of the Northern Hemisphere (including Europe), the summer of 2023 was the warmest in 2,000 years. The authors published the results in the journal Nature. 

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Reaction: heat waves move more slowly, which exacerbates their effects

A study has analysed data on heat waves from 1979 to 2020 and concludes that their propagation speed has decreased over the last 40 years due to anthropogenic causes. In addition, their frequency, intensity and travel distance have increased. According to the authors, "longer-lasting and slower-moving heat waves will cause more devastating effects on natural and social systems in the future if [greenhouse gases] continue to increase and effective mitigation measures are not taken". The findings are published in the journal Science Advances.  

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Reactions: skeletons of marine sponges suggest that global temperature has already exceeded the 1.5°C limit

Global average surface temperatures may have already surpassed the 1.5°C warming mark and could exceed 2°C by the end of the decade, as suggested by an article published in Nature Climate Change. The projections are based on 300 years of preserved ocean temperature records found in Caribbean sponge skeletons.

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Reactions: COP28 approves "transition away from fossil fuels" in Global Stocktake

After an intense night of negotiations in Dubai (United Arab Emirates), the countries participating in COP28 reached a historic agreement by mentioning for the first time "moving away from fossil fuels" in the Global Stocktake document - the assessment of progress made towards achieving the climate goals set out in the Paris Agreement. The agreement comes after the first draft presented by the presidency did not make this mention - it referred only to "reducing consumption and production" of these fuels - which was described as "unacceptable" by countries such as Spain.

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Pep Canadell: "Every citizen has the responsibility to put pressure on governments, which have committed to zero emissions by 2050"

Global carbon emissions from fossil fuels have increased again in 2023, reaching record levels, reaching 36.8 billion tonnes of CO2. This means they are 1.4% above pre-pandemic CO2 levels. This is one of the forecasts in the Global Carbon Budget 2023 report that researcher Pep Canadell presented at a briefing organised by SMC Spain.

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