10 things you need to know today: July 5, 2023

Global temperatures break records, Biden renews calls for gun control, and more

A young boy in China stands in a fountain on a hot day
July 3 was the hottest day ever recorded on Earth
(Image credit: Kevin Frayer / Getty Images)

1. Average global temperatures reach hottest on record

Monday was the hottest day ever recorded on Earth, as average worldwide temperatures hit 63 degrees Fahrenheit (17 degrees Celsius). The previous record, according to the National Centers for Environmental Prediction, was 62.4 degrees (16.9 degrees Celsius). The records date back to the end of the 19th century. Scientists believe "mankind's ongoing emissions of carbon dioxide" as well as El Niño are driving the change, the BBC reported. El Niño is a weather phenomenon in which water surface temperatures rise in the tropical eastern and central Pacific Ocean. It can last up to 12 months. China and the U.S. are in the midst of extreme heatwaves. "This is not a milestone we should be celebrating, it's a death sentence for people and ecosystems," said Friederike Otto, a senior lecturer at the Grantham Institute for Climate Change and the Environment.

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