Why is this year so hot?

High temperatures are frequent all over the world. The United Kingdom experienced the first high temperature of over 40ºC on record. India and Pakistan experienced heat waves earlier this March. Hundreds of cities in China were hit by heat waves last week, with temperatures exceeding 40ºC in some cities. Why is this year so hot ? A possible reason for the simultaneous occurrence of extreme heat in many places around the world is atmospheric patterns called Rossby waves, which curve around the Earth and stall weather patterns in specific regions, making those regions prone to extreme heat. The question of whether climate change will make these phenomena more common is unclear. But concurrent heatwave events that are not related to atmospheric patterns do occur more frequently as the climate warms, says Deepti Singh, a climate scientist at Washington State University in Vancouver. .”

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