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Keldura Daily · Climate & Environment

How climate pressure is reshaping water, mountains, oceans and power policy

Four developments reveal connected environmental risks: the global water cycle is becoming less predictable, warming helped destabilize a Himalayan slope, rivers are carrying unexpectedly large microplastic loads, and the EPA’s retreat from power-plant climate rules is headed to court.[2][3][4][5][6][7][8]

The field note

5 sources · 5 items
  1. Every major glacier on Earth lost ice for a fourth consecutive year, weakening an important reserve that helps…
  2. Global heating contributed to August’s record atmospheric moisture, while the historic Pacific El Niño was also…
  3. WMO does not attribute every water change to climate change alone, noting that natural variability and pressure…
Story 013 sources

Why a warmer atmosphere makes the water cycle more erratic

The WMO says river flows, groundwater and glaciers show sustained disruption, with 2025 ranking among the driest years for global river flows in 35 years and below-normal discharge covering 36 per cent of the world.[3][7] Separately, Copernicus found that the atmosphere held more water vapour in August than during any other recorded month, increasing the risk of extreme heat and rainfall.[4]

Why it matters

A warmer atmosphere can hold more moisture, while disrupted rivers, glaciers and groundwater leave communities facing sharper swings between floods and droughts; WMO says historical water patterns are therefore becoming less reliable for planning.[3][4][7]

Key insights

  • Every major glacier on Earth lost ice for a fourth consecutive year, weakening an important reserve that helps balance wet and dry seasons.[7]
  • Global heating contributed to August’s record atmospheric moisture, while the historic Pacific El Niño was also likely a factor.[4]
  • WMO does not attribute every water change to climate change alone, noting that natural variability and pressure on water resources also contribute.[7]
  • WMO identifies improved monitoring, data-sharing and early-warning systems as important tools for adapting to shifting water conditions.[7]
Story 022 sources

How warming helped turn a vulnerable Himalayan slope into a disaster

World Weather Attribution concluded that climate change was a destabilising factor in the collapse, though not its sole cause.[2][5] The researchers described a compound event involving temperatures about 1.5C warmer because of human influence, thinning glaciers, thawing permafrost, meltwater and pre-existing geological weaknesses.[5] The collapse involved about 2 sq km of rock wall and glacier ice and produced flooding that killed around 1,400 people, with thousands reported missing.[2]

Why it matters

The finding shows how climate change can amplify an existing geological hazard rather than acting as a single trigger, complicating risk assessment for communities beneath warming mountain slopes.[2][5]

Key insights

  • Glaciers in the region had been thinning by about half a metre annually, potentially weakening fractures and increasing instability.[5]
  • Heavy snowfall in October and November supplied substantial meltwater early in the year, adding another component to the compound event.[5]
  • Researchers said the slope may also have been weakened by the 7.8-magnitude earthquake that struck the area in 2015.[5]
  • Nepal argues that its low contribution to greenhouse-gas emissions contrasts with its high vulnerability to warming, placing the disaster within a wider climate-justice debate.[5]

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