Higher temperatures can cause radio, TV and microwave signals to travel hundreds of miles farther, upsetting communications

It was 3am in north-east Indiana’s Huntington county when the outdoor emergency alarm went off on 1 July.

The only issue? There wasn’t a storm, tornado or any other emergency weather event forecast or present anywhere for hundreds of miles.

National Weather Service issued an extreme heat warning as high temperatures have paralyzed the east coast

Organizers of Saturday’s Independence Day parade in Washington DC abruptly canceled the event late on the eve of the event, with sweltering temperatures in the nation’s capital and on the east coast wreaking havoc on celebrations of the US’s semiquincentennial.

The event, hosted by the National Park Service (NPS), was scheduled to begin at 10.30am on Saturday. But organizers said they canceled the procession due to an extreme heart warning issued by the National Weather Service (NWS).

Despite a deadly heatwave sweeping through Europe, the US president’s ineptness has created reason for optimism on the climate crisis

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Two real-life climate-themed movies are playing in parallel across the globe. They are about the world today, but they are also a snapshot of the future. The first is a slow-building horror story; the second, a feelgood summer hit. Both are worth watching.

Horror films are suddenly box-office gold, so let’s start there. The World Health Organisation says the extreme, record-breaking heatwave blanketing Europe has killed more than 1,300 people. But everyone knows that number will end up a dramatic understatement.