Residents and volunteers help with rescues through floodwaters in Canoas, Rio Grande do Sul, Brazil, on May 5. Photographer: Carlos Macedo/Bloomberg
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Greenhouse Effect - Climate Change - 氣候變化 - 温室効果 - Mudanças Climáticas
Residents and volunteers help with rescues through floodwaters in Canoas, Rio Grande do Sul, Brazil, on May 5. Photographer: Carlos Macedo/Bloomberg
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Temperatures in Delhi have hit a record high of 50.5C (122.9F), as authorities warned of water shortages in India’s capital.
The India Meteorological Department (IMD), which reported “severe heat-wave conditions”, recorded the temperature in the suburb of Mungeshpur on Wednesday afternoon, breaking the landmark 50C measurement for the first time in the city.
The temperature was more than nine degrees higher than expected, the IMD said, and came on the second day of record-breaking heat. On Tuesday a high of 49.9C had been hit in Mungeshpur and Narela, breaking the 2002 record of 49.2C.
The IMD warned of the heat’s impact on health, especially for children, elderly people and those with chronic diseases. The alert warns there is a “very high likelihood of developing heat illness and heat stroke in all ages”, with “extreme care needed for vulnerable people”.
India is no stranger to searing summer temperatures. Years of scientific research have found the climate crisis is causing heatwaves to become longer, more frequent and more intense.
“To address the problem of water scarcity, we have taken a slew of measures such as reducing water supply from twice a day to once a day in many areas,” Atishi said, the Indian Express reported.
“The water thus saved will be rationed and supplied to the water-deficient areas where supply lasts only 15 to 20 minutes a day,” she added.
The heatwave has been building up inexorably for weeks, but even so residents were shocked by conditions on Tuesday and Wednesday. People told of fingers being scorched from touching the steering wheel of a car, and tap water was coming out at boiling temperatures.
“Having a shower is almost a waste of time,” said Aruna Verma, a chemistry teacher. “You come out of it and instantly you are a sweaty mess again.”
Newspapers have published lists of does and don’ts based on doctors’ advice. People have been urged to stay indoors and wear light, loose cotton clothes – advice that is impossible for much of the city’s workforce to follow, including labourers and market stall sellers.
Construction workers have mostly stopped working between noon and 4pm. “The metal rods I’m working with are too hot to touch. Even if I restart work at 5pm, the rods are burning and the heat from the sparks makes it worse,” said Babu Ram, a welder working on a block of flats in New Friends Colony, south of the city centre.
Sameer Prakash, a vegetable vendor, typically stands outside next to his cart until about 2pm, waiting for customers to emerge from their air-conditioned homes.
He alternates between splashing water on the vegetables – to stop them wilting – and on his head, to avoid heatstroke.
“What’s the choice? No one is going to feed my children unless I take some money home are they? Work is work. It just has to be done,” he said. “The sun just kills the vegetables so I buy less than usual from the wholesale market because if I don’t sell them, they will rot.”
It has been gruelling too for politicians addressing rallies in the blistering heat as part of the ongoing general election, and their audiences. Political parties have urged those coming out to bring wet towels, extra water to wet the towels again once they dry, and packets of oral rehydration salts.
Many blame the soaring temperatures on scorching winds from Rajasthan state, where temperatures on Tuesday also reached 50.5C.
At the SMS hospital in Rajasthan’s capital, Jaipur, so many bodies of casualties of the heat have arrived at the mortuary that its capacity has been exceeded. Police in the city say many of the victims are poor labourers, who have no choice but to work outside, and homeless people.
Rajasthan’s desert region of Phalodi holds the country’s all-time heat record, hitting 51C in 2016.
Indians who can afford to escape the baking cities have fled to cooler places in the mountains. But even alpine-like Kashmir, known as the “Switzerland of the east”, has witnessed an unprecedented heatwave.
At the same time, West Bengal and the north-eastern state of Mizoram have been struck by gales and lashing rains from Cyclone Remal, which hit India and Bangladesh on Sunday, killing more than 38 people.
The Bangladesh Meteorological Department said the cyclone was “one of longest in the country’s history” and blamed climate change for the shift.
Só no verão europeu de 2022, estima-se que 60 mil pessoas tenham morrido devido às altas temperaturas
Relatório alerta que as temperaturas no continente sobem duas vezes mais rápido do que a média global, contribuindo para elevar o número de óbitos devido a ondas de calor.
"A mudança climática não é um cenário futuro distante e teórico. Ela está aqui. E está matando", diz o recém-publicado relatório Lancet Countdown Europe Report. Este é o segundo levantamento da série "Lancet Countdown" que trata das consequências das mudanças climáticas para a saúde, especificamente para as pessoas na Europa. O texto foi escrito por cerca de 70 pesquisadores de vários países e disciplinas. A Universidade de Heidelberg, na Alemanha, desempenhou um papel fundamental no projeto.
O estudo alerta que as temperaturas na Europa estão subindo duas vezes mais rápido do que a média global. Nos últimos dez anos, houve 45% mais dias quentes do que na década anterior. E isso contribui para o aumento de mortes devido a ondas de calor no continente. Em média, elas subiram em 17,2 mortes por 100 mil habitantes entre os anos de 2013 e 2022, em comparação ao período entre os anos de 2003 a 2012. Só no verão europeu de 2022, estima-se que 60 mil pessoas tenham morrido devido às altas temperaturas.
A Europa Ocidental é a região de maior risco, segundo o relatório. Isso se deve ao fato de que um número particularmente grande de pessoas vulneráveis vive nessa área: idosos, doentes, além de residentes de grandes cidades, as quais se aquecem rapidamente nos meses mais quentes.
"E há diferenças geográficas. A Alemanha, por exemplo, tem uma taxa de mortalidade excessiva bastante alta em decorrência de ondas de calor, especialmente entre as mulheres", acrescenta o epidemiologista, matemático e estatístico Joacim Rocklöv, um dos autores do levantamento.
O estudo também identifica injustiças sociais: por exemplo, as minorias étnicas ou as pessoas de baixa renda geralmente sofrem mais com os efeitos das mudanças climáticas.
O relatório também identifica as doenças infecciosas emergentes como um grande risco à saúde. Isso ocorre porque alguns patógenos e seus vetores podem se espalhar mais para o norte europeu devido ao clima mais quente, especialmente no inverno.
O mosquito-tigre-asiático, por exemplo, já está se espalhando ao longo do rio Reno. Mais e mais distritos na Alemanha estão sendo declarados áreas de risco de encefalite transmitida por carrapato.
E o vírus do Nilo Ocidental, causador da febre do Nilo Ocidental, também está se tornando um perigo. No sul da Europa sobretudo, também aumenta o risco de doenças transmitidas por mosquitos, incluindo chicungunha e dengue.
De acordo com o relatório, os sistemas de saúde de quase todos os países europeus não estão bem equipados para lidar com os efeitos do aquecimento global. Muitos países carecem de planos de proteção contra o calor ou para emergências, assim como sistemas de alerta precoce para desastres climáticos. Também as adaptações no desenvolvimento urbano, por exemplo, são inadequadas em todo o continente, de acordo com o estudo.
A man wades through flood water in Downpatrick, Northern Ireland, in November. Photograph: Liam McBurney/PA
Winter downpours also made 20% wetter and will occur every three years without urgent carbon cuts, experts warn
The seemingly “never-ending” rain last autumn and winter in the UK and Ireland was made 10 times more likely and 20% wetter by human-caused global heating, a study has found.
More than a dozen storms battered the region in quick succession between October and March, which was the second-wettest such period in nearly two centuries of records. The downpour led to severe floods, at least 20 deaths, severe damage to homes and infrastructure, power blackouts, travel cancellations, and heavy losses of crops and livestock.
The level of rain caused by the storms would have occurred just once in 50 years without the climate crisis, but is now expected every five years owing to 1.2C of global heating reached in recent years. If fossil fuel burning is not rapidly cut and the global temperature reaches 2C in the next decade or two, such severe wet weather would occur every three years on average, the analysis showed.
The experts behind the study warned that work to protect the populations of the UK and Ireland was still “sorely lacking” and poor and vulnerable people were hardest hit. For example, dehumidifiers provided to dry out flooded homes were not used by some because of high energy costs, while others could not afford to replace losses of frozen food after storms cut power supplies.
The analysis, conducted by climate scientists working as part of the World Weather Attribution group, compared how likely and how intense the wet winter was in today’s heated world with how likely it would have been in a world without high levels of carbon emissions. Warmer air can hold more water vapour and therefore produce more rain. Hundreds of “attribution studies” have shown how global heating is already supercharging extreme weather such as heatwaves, wildfires, droughts and storms across the world.
“The seemingly never-ending rainfall this autumn and winter across the UK and Ireland had notable impacts,” said Dr Mark McCarthy, a climate scientist at the UK Met Office and part of the WWA team. “In the future we can expect further increases – that’s why it is so important for us to adapt to our changing climate and become more resilient.”
Dr Sarah Kew, a researcher at the Royal Netherlands Meteorological Institute and also part of the WWA team, said: “The UK and Ireland face a wetter, damper and mouldier future due to climate change. Until the world reduces emissions to net zero, the climate will continue to warm, and rainfall in the UK and Ireland will continue to get heavier.”
The study included storms Babet, Ciarán, Henk and Isha, which were among the most damaging. A separate analysis from the Energy and Climate Intelligence Unit found that the losses of arable crops alone in the UK due to the heavy rain would cost farmers about £1.2bn, compared with average production over the last decade. Further losses would be suffered by vegetable growers.
Dr Ellie Murtagh, the UK climate adaptation lead at the British Red Cross, said: “We know flooding has a devastating impact on people’s lives. Its effects can be felt for months and years afterwards.”
She said the storms and flooding had caused weather-related home insurance claims in the UK to rise by over a third, reaching a record-breaking £573m worth of claims. One in seven people do not have insurance, with many saying they are unable to afford it.
UK ministers have been criticised for years over the failure to make adequate plans to protect people against the impacts of global heating. In July, the government’s most recent climate adaptation plan was condemned as “very weak” by experts.
“The level of implementation of adaptation interventions is still sorely lacking,” said Murtagh. “Independent assessments in both the UK and Ireland have highlighted the lack of progress.”
Dr Friederike Otto, a climate scientist at Imperial College London and co-founder of WWA, said: “To put it bluntly, climate change is already making life shittier. Wetter winters are flooding farms, cancelling football matches, overflowing sewage systems and [making] groceries more expensive.
“Thankfully, we know the solutions. Replace oil, gas and coal with cleaner, cheaper renewable sources of energy; insulate homes, and restore nature. All this will make life cheaper and better for all, not more expensive.”
Aline Scherercolaboração para a CNN
Edital cita, por exemplo, necessidade das empresas descreverem imóveis localizados em áreas sujeitas a inundações
A Comissão de Valores Mobiliários (CVM), que regula parte do mercado financeiro, abriu uma consulta pública para receber pronunciamentos técnicos sobre a divulgação de informações sobre riscos e oportunidades relacionados ao clima.
A proposta é que as empresas prestem informações úteis para a tomada de decisões por parte de quem utiliza os relatórios financeiros e decide sobre o fornecimento de recursos para as organizações.
O edital, elaborado pela Superintendência de Normas Contábeis e de Auditoria (SNC) da autarquia, explica que as informações climáticas se referem às políticas e práticas adotadas pelas empresas em três tópicos principais: riscos físicos, riscos de transição e oportunidades disponíveis.
As empresas terão de descrever em seus relatórios financeiros quais os riscos físicos que seus negócios podem sofrer com o aumento da frequência e intensidade de eventos climáticos extremos, inclusive as alterações nos índices de mortes e enfermidades relacionadas.
Os dados também deverão incluir a expectativa razoável de afetar os fluxos de caixa, seu acesso a financiamento ou custo de capital no curto, médio ou longo prazo.
Também deverão descrever quais os riscos relacionados à transição ordenada para uma economia de baixo carbono ou consistente com compromissos assumidos no último acordo internacional sobre mudanças climáticas. E mencionar as oportunidades disponíveis para a organização.
Além disso, a minuta prevê exigências de divulgações específicas sobre os os processos, controles e procedimentos de governança que a entidade usa para monitorar, gerenciar e supervisionar os riscos climáticos e de transição.
E ainda incluir como esses processos são integrados, a estratégia da empresa para geri-los, e informar o desempenho da companhia em suas metas definidas sobre o clima.
O edital da CVM fala, por exemplo, da necessidade das empresas descreverem seus imóveis localizados em áreas sujeitas a inundações. E também orienta que as empresas, sobretudo seguradoras, descrevam suas políticas para incentivar comportamentos responsáveis em termos de saúde, segurança e meio ambiente.
Após o encerramento do prazo para envio de manifestações, que vai até o dia 11 de julho, a área técnica analisará as sugestões recebidas e, posteriormente, levará a proposta para aprovação e edição da norma em questão.
A proposta é que a Resolução entre em vigor em 1º de janeiro de 2026, embora seja permitida e recomendada a adoção antecipada.
A obrigação de prestar informações relacionadas ao clima está alinhada aos padrões internacionais. Mais especificamente à IFRS S2, norma emitida pelo International Sustainability Standards Board (ISSB), órgão criado pela IFRS Foundation – organização que define as regras para o padrão contábil mais adotado no mundo pelas empresas de capital aberto.
A exigência do detalhamento de informações de acordo com um padrão pré-estabelecido é um esforço dos órgãos reguladores para evitar greenwashing, ou maquiagem verde. O termo é usado quando empresas acabam enganando os consumidores com selos falsos e uma imagem de responsabilidade socioambiental que não condiz com a prática da organização.
“A mudança climática é a discussão central. E, ultimamente, depois de dois anos de aplicação da regra na Europa, e de bastantes relatórios, a comissão entendeu que ainda estão sendo utilizados termos muito vagos”, explica o advogado Bruno Galvão, do escritório Blomstein, com sede em Berlim, na Alemanha.
“Para dizer que um investimento é sustentável, tem que categorizar a atividade que se está colocando dinheiro dentro dos parâmetros da taxonomia, que define o que é uma atividade sustentável ou não, e mostrar quais potenciais impactos negativos que a atividade tem, e o clima tem um papel fundamental nisso”, conclui.
Drought last year left the Amazon’s rivers, including the Rio Negro tributary, at record low levels. Photograph: Andre Coelho/EPA
More than a third of the Amazon rainforest is struggling to recover from drought, according to a new study that warns of a “critical slowing down” of this globally important ecosystem.
The signs of weakening resilience raise concerns that the world’s greatest tropical forest – and biggest terrestrial carbon sink – is degrading towards a point of no return.
It follows four supposedly “one-in-a-century” dry spells in less than 20 years, highlighting how a human-disrupted climate is putting unusually intense strains on trees and other plants, many of which are dying of dehydration.
In the past, the canopy of the South American tropical forest, which covers an area equivalent to about half of Europe, would shrink and expand in tandem with the annual dry and rainy seasons. It also had the capacity to bounce back from a single drought
But in recent times, recoveries have become more sluggish because droughts are growing more intense in the south-east of the Amazon and more frequent in the north-west.
The new paper, published in Proceedings of the National Academy of Sciences, examines satellite images of vegetation activity from 2001 to 2019. Tens of thousands of pixels, each covering a 25-sq km (9.65-sq mile) area, were analysed on a month-by-month basis and correlated with local rainfall data.
The authors’ goal was to investigate how “the frequency, intensity, or duration of droughts contributes to stability loss of Amazon vegetation”.
They found 37% of the mature vegetation in the region exhibited a slowing-down trend. While the patterns varied from area to area, they concluded that the highly deforested and degraded south-eastern Amazon was most vulnerable to a “tipping event”: in other words, a calamitous decline of the tropical rainforest to a different, drier state.
Their research found drought intensity was a more significant factor than drought frequency, though a combination of the two was most destabilising.
The paper’s lead author, Johanna Van Passel, said the satellite images only showed part of the true picture, and the situation below the canopy could be more severe. “Trees are the last part of the ecosystem to show tipping points because they have the longest life cycle and are most able to cope,” she said. “If we are already seeing a tipping point getting closer at this macro forest level, then it must be getting worse at a micro level.”
This is dire news for the Amazon and the world. The rainforest is home to 15,000 tree species, which help to draw down carbon dioxide from the atmosphere. But this ability – and the forest’s overall resilience – is being weakened by climate chaos caused by human burning of trees, gas, oil and coal. The paper says the slowing recovery rate of the forest may be an “early indicator” of large-scale ecosystem collapse.
“It makes me very worried about the future of the Amazon,” Van Passel said. “It is a warning sign that a tipping point can be reached in the future if these droughts continue to increase and get more intense.”
The Amazon, which is normally home to the biggest body of freshwater in the world, suffered a devastating drought last year that left its once-mighty rivers at record low levels, worsened forest fires and led to the mass die-off of more than 100 river dolphins. This was a continuation of a broader trend. The paper notes that the Amazon areas that had the lowest rainfall since the early 2000s suffered the largest decline in stability.
Cidade de Sinimbu, a 240 km de Porto Alegre, foi destruída pela enchente Divulgação/Prefeitura de Sinimbu
In scorching heat on a busy Kolkata street last month, commuters sought refuge inside a glass-walled bus shelter where two air conditioners churned around stifling air. Those inside were visibly sweating, dabbing at their foreheads in sauna-like temperatures that were scarcely cooler than out in the open.
Local authorities initially had plans to install as many as 300 of the cooled cabins under efforts to improve protections from a heat season that typically runs from April until the monsoon hits the subcontinent in June. There are currently only a handful in operation, and some have been stripped of their AC units, leaving any users sweltering.
A rice paddy during a drought in Uttaradit, northern Thailand. Rice production around the world is stagnating and even declining. Photogr...