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Heatwave scorching US west ‘virtually impossible’ without climate crisis, say scientists
| United Kingdom | politics | ✓ Verified - theguardian.com

Heatwave scorching US west ‘virtually impossible’ without climate crisis, say scientists

#heatwave #climate crisis #US West #scientists #global warming #extreme weather #climate change attribution

📌 Key Takeaways

  • Scientists attribute the US West heatwave to climate change, calling it 'virtually impossible' otherwise.
  • The heatwave is part of a broader pattern of extreme weather events linked to global warming.
  • Research highlights the increasing frequency and intensity of such heatwaves due to human activities.
  • The findings underscore the urgent need for climate action to mitigate future extreme weather risks.

📖 Full Retelling

<p>Unseasonably warm and even dangerous temperatures this week were up to 30F above average for the time of year</p><p>The <a href="https://www.theguardian.com/us-news/2026/mar/19/march-heatwave-weather-us">record-breaking heatwave</a> scorching the US west this week would have been “virtually impossible” if not for the climate crisis, a team of scientists has determined.</p><p>Millions of Americans from the Pacific coast to the Rockies baked under unsea

🏷️ Themes

Climate Change, Extreme Weather

📚 Related People & Topics

US West

American telephone service company (1983–2000)

U S West, Inc. was one of seven Regional Bell Operating Companies (RBOCs, also referred to as "Baby Bells"), created in 1983 under the Modification of Final Judgement (United States v. Western Electric Co., Inc.

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US West

American telephone service company (1983–2000)

Deep Analysis

Why It Matters

This news is important because it directly links extreme weather events to human-caused climate change, affecting public health, infrastructure, and policy decisions. It impacts residents in the western US facing health risks and economic losses, while influencing global climate action and emergency preparedness strategies. The findings underscore the urgency for mitigation and adaptation measures to address increasing climate-related disasters.

Context & Background

  • The western US has experienced worsening heatwaves and droughts over recent decades, with 2021 being one of the hottest years on record globally.
  • Scientific attribution studies have become more precise, allowing researchers to quantify climate change's role in specific extreme events using models and historical data.
  • The Intergovernmental Panel on Climate Change (IPCC) has consistently warned that human activities, like burning fossil fuels, are driving global temperature rises and extreme weather.

What Happens Next

Expect increased public health warnings and potential power grid strains as the heatwave persists, with possible wildfires exacerbating the crisis. In the longer term, this may spur policy debates on climate action, such as emissions reductions and heat adaptation plans, ahead of international forums like the UN Climate Change Conference.

Frequently Asked Questions

What does 'virtually impossible' mean in this context?

It indicates that such an intense heatwave would have been extremely unlikely to occur naturally without human-induced climate change, based on statistical analysis comparing current conditions to pre-industrial scenarios.

How do scientists determine climate change's role in heatwaves?

They use climate models to simulate scenarios with and without human-caused greenhouse gas emissions, analyzing temperature data to assess the probability and severity of such events in each case.

Who is most affected by this heatwave?

Vulnerable populations, including the elderly, children, outdoor workers, and those without air conditioning, face heightened health risks, while agriculture and water resources in the region are also strained.

Can we expect more events like this in the future?

Yes, as global temperatures rise, heatwaves are projected to become more frequent, intense, and longer-lasting, according to climate projections from organizations like the IPCC.

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Original Source
<p>Unseasonably warm and even dangerous temperatures this week were up to 30F above average for the time of year</p><p>The <a href="https://www.theguardian.com/us-news/2026/mar/19/march-heatwave-weather-us">record-breaking heatwave</a> scorching the US west this week would have been “virtually impossible” if not for the climate crisis, a team of scientists has determined.</p><p>Millions of Americans from the Pacific coast to the Rockies baked under unsea
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theguardian.com

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