Le 17 juillet 2026: Royaume-Uni fireFirewave |. Les décès par la chaleur causés par les combustibles fossiles. Le Musée d'histoire naturelle de Londres met en lumière le climat

On 17 July 2026, the United Kingdom experienced a severe heatwave dubbed a “firewave,” with temperatures reaching unprecedented levels and triggering widespread wildfires across parts of the country. According to the Financial Times, the UK recorded 25 non-consecutive days with temperatures of 30°C or higher, including nine days exceeding 34°C. This extreme weather placed immense strain on emergency services and highlighted the growing risks associated with climate change. The Met Office noted that such conditions are becoming part of the “new normal,” as rising temperatures continue to push the boundaries of what was once considered extreme weather. Last year marked the UK's hottest on record, and experts warn that this trend will likely persist, surpassing previous records in the coming years. Wildfires spread rapidly across Europe and North America, with France deploying water-dumping planes to combat a blaze in the Fontainebleau forest near Paris. These efforts were necessary as the fires threatened local ecosystems and infrastructure. In Canada, smoke from wildfires created an orange haze visible in Ontario and parts of the northern United States, underscoring the transnational nature of the crisis. The UK’s situation was exacerbated by prolonged droughts, which dried vegetation and increased the risk of uncontrolled blazes. Emergency responders faced challenges in containing these fires, with some areas reporting delays in resource deployment due to the scale of the disaster. The impact of these extreme weather events extended beyond immediate safety concerns. Health officials reported a surge in heat-related illnesses and fatalities, with over 1,000 deaths in England and Wales linked to the heat during May and June. Scientists emphasized that climate change played a significant role in these outcomes, attributing nearly half of the heat-related deaths to anthropogenic factors. The UK government acknowledged the urgency of addressing this issue, though political debates over energy policy continued to divide public discourse. Meanwhile, international climate initiatives saw both progress and setbacks. The European Commission set a goal for electricity to account for 46% of total energy consumption within the EU by 2040, aiming to reduce reliance on fossil fuels. However, the Trump administration in the United States reversed several policies supporting renewable energy, leading to the cancellation or postponement of $83 billion in clean energy investments. Environmental regulations were also relaxed, allowing development in habitats of endangered species. In contrast, Australia introduced measures to restrict energy and water usage by data centres amid the rapid expansion of artificial intelligence technologies. In East Africa, drought conditions worsened, particularly in Uganda, where crop failures resulted in significant food shortages and at least 16 deaths from starvation. The situation raised urgent concerns about the vulnerability of agricultural systems to climate variability. Meanwhile, Brazil reported a 38% decrease in deforestation rates in the Amazon region during the first half of 2026 compared to the same period in 2025, offering a rare sign of positive environmental management despite ongoing challenges. Scientific research published in journals such as Geophysical Research Letters revealed that the annual area of land burned by wildfires in Africa has decreased due to shorter dry seasons, suggesting possible shifts in regional climate patterns. Studies also found that many individuals struggle to differentiate between climate adaptation and mitigation strategies, highlighting the need for clearer communication in public policy discussions. An effort-sharing framework developed by researchers aims to enhance cooperation among nations in meeting the goals of the Paris Agreement. London’s Natural History Museum launched its first permanent climate-themed exhibition, Fixing Our Broken Planet, to educate visitors on the science and solutions related to climate change. The initiative reflects a broader shift in public engagement with environmental issues, emphasizing the importance of collective action and scientific literacy in addressing global warming. As governments and institutions grapple with the realities of a changing climate, the focus remains on balancing economic growth with sustainable practices and protecting vulnerable populations from the escalating impacts of climate change.