Summary of "Fact check: What we know about the link between climate change and heatwaves"
Scientific Link Between Climate Change and Heat Waves
The video explains the connection between climate change and heat waves, with a focus on recent heat events in Europe. It covers key scientific concepts and findings related to this topic.
Definition of Heat Waves
- Heat waves are prolonged periods, usually lasting at least three days, of significantly warmer-than-average weather.
- Threshold temperatures for defining heat waves vary by location:
- For example, 25°C in Helsinki.
- Up to 39°C in Athens.
- These thresholds can also differ within countries depending on regional climate.
Climate Change and Heat Waves
- Heat waves can occur naturally, without influence from climate change.
- However, climate change is increasing the frequency, intensity, and duration of heat waves worldwide.
Scientific Evidence
- Researchers at Carbon Brief analyzed 116 heat-related events across Europe.
- They found that 95% of these events were made more severe or more likely due to climate change.
- This evidence supports the view that intense heat episodes are becoming the new normal.
- Further global warming is expected to increase both the frequency and severity of heat waves.
Europe’s Vulnerability
- Europe is currently the fastest-warming continent.
- This rapid warming makes Europe particularly susceptible to heat waves.
Atmospheric Mechanism
- Some studies link Europe’s heat waves to the phenomenon of double jet streams.
- A double jet stream occurs when a strong westerly air band splits into two branches, trapping warm air over Europe and contributing to prolonged heat.
Researchers and Sources Featured
- The video highlights the work of Carbon Brief researchers.
- They have created a comprehensive mapping of scientific studies on climate change and extreme weather events, providing valuable insights into the link between climate change and heat waves.
Category
Science and Nature
