Pour voir les références d’un(e) auteur(e), cliquez sur son nom. Pour revenir à la page, utilisez le bouton refresh ci-dessous.
Cela fonctionne également avec les mot-clés de chaque référence.
Résultats pour:
eau
Climate activists opposed to the Mountain Valley pipeline were accused of breaking West Virginia’s new critical infrastructure law
Jordanians now only have access to publicly distributed water a day and a half a week – prompting many to turn to illegal markets.
Extreme heat affecting nearly 23m people across US south-west and pushing Texas’s electrical grid to the limit.
The story of Greenland keeps getting greener—and scarier. A new study provides the first direct evidence that the center—not just the edges—of Greenland's ice sheet melted away in the recent geological past and the now-ice-covered island was then home to a green, tundra landscape.
A new study finds that the mining and processing of the metal critical to EV batteries and renewable energy storage projects depletes and contaminates surface water, often in already vulnerable communities.
Sudden cut in pollution in 2020 meant less shade from sun and was ‘substantial’ factor in record surface temperatures in 2023, study finds
Jakarta’s subsidence crisis illustrates the conflation of two threats: global climatic sea-level rise and the local environmental crisis. It also sheds light on the city’s longstanding issues of urban flooding and chronic piped water supply shortages.
Over the past 50 years, humans have extracted the Earth’s groundwater stocks at a steep rate, largely to fuel global agro-economic development. Given society’s growing reliance on groundwater, we explore ‘peak water limits’ to investigate whether, when and where humanity might reach peak groundwater extraction. Using an integrated global model of the coupled human–Earth system, we simulate groundwater withdrawals across 235 water basins under 900 future scenarios of global change over the twenty-first century. Here we find that global non-renewable groundwater withdrawals exhibit a distinct peak-and-decline signature, comparable to historical observations of other depletable resources (for example, minerals), in nearly all (98%) scenarios, peaking on average at 625 km3 yr−1 around mid-century, followed by a decline through 2100. The peak and decline occur in about one-third (82) of basins, including 21 that may have already peaked, exposing about half (44%) of the global population to groundwater stress. Most
Bengaluru has a huge chunk of the country's techies, who have flocked to the IT hub for the opportunities it offers. Now, they are looking at work-from-home options
A major New York Times investigation reveals how the United States’ aquifers are becoming severely depleted due to overuse in part from huge industrial farms and sprawling cities. The Times reports that Kansas corn yields are plummeting due to a lack of water, there is not enough water to support the construction of new homes in parts of Phoenix, Arizona, and rivers across the country are drying up as aquifers are being drained far faster than they are refilling.
According to the latest update to the NBB’s Climate Dashboard, it appears unlikely that the world will be able to limit global warming to 1.5 °C.
Plastic debris is thought to be widespread in freshwater ecosystems globally1. However, a lack of comprehensive and comparable data makes rigorous assessment of its distribution challenging2,3. Here we present a standardized cross-national survey that assesses the abundance and type of plastic debris (>250 μm) in freshwater ecosystems. We sample surface waters of 38 lakes and reservoirs, distributed across gradients of geographical position and limnological attributes, with the aim to identify factors associated with an increased observation of plastics. We find plastic debris in all studied lakes and reservoirs, suggesting that these ecosystems play a key role in the plastic-pollution cycle. Our results indicate that two types of lakes are particularly vulnerable to plastic contamination: lakes and reservoirs in densely populated and urbanized areas and large lakes and reservoirs with elevated deposition areas, long water-retention times and high levels of anthropogenic influence. Plastic concentrations vary
Emmanuel Macron’s government is at least doing the bare minimum to avert the planetary crisis – and putting the UK to shame, says Guardian columnist George Monbiot
Examination of trees alive at the time shows three years of severe drought that may have caused crop failures and famine
Climate change and human activities increasingly threaten lakes that store 87% of Earth’s liquid surface fresh water. Yet, recent trends and drivers of lake volume change remain largely unknown globally. Here, we analyze the 1972 largest global lakes using three decades of satellite observations, climate data, and hydrologic models, finding statistically significant storage declines for 53% of these water bodies over the period 1992–2020. The net volume loss in natural lakes is largely attributable to climate warming, increasing evaporative demand, and human water consumption, whereas sedimentation dominates storage losses in reservoirs. We estimate that roughly one-quarter of the world’s population resides in a basin of a drying lake, underscoring the necessity of incorporating climate change and sedimentation impacts into sustainable water resources management.
Going beyond climate disruption, the report by the Earth Commission group of scientists presents disturbing evidence that our planet faces growing crises of water availability, nutrient loading, ecosystem maintenance and aerosol pollution. These pose threats to the stability of life-support systems and worsen social equality.
Abusive, often violent tweets denying the climate emergency have become a barrage since Elon Musk acquired the platform, say UK experts
Pools and well-watered gardens at least as damaging as climate emergency or population growth
Freshwater availability is changing worldwide. Here we quantify 34 trends in terrestrial water storage observed by the Gravity Recovery and Climate Experiment (GRACE) satellites during 2002–2016 and categorize their drivers as natural interannual variability, unsustainable groundwater consumption, climate change or combinations thereof. Several of these trends had been lacking thorough investigation and attribution, including massive changes in northwestern China and the Okavango Delta. Others are consistent with climate model predictions. This observation-based assessment of how the world’s water landscape is responding to human impacts and climate variations provides a blueprint for evaluating and predicting emerging threats to water and food security. Analysis of 2002–2016 GRACE satellite observations of terrestrial water storage reveals substantial changes in freshwater resources globally, which are driven by natural and anthropogenic climate variability and human activities.