Dozens succumb to unprecedented heat wave amid global warming. Sings propping up warning motorists of heat?

Reports are also that unknown number of livestock decimated, fears of price hikes abound. How much more people suffer before we put the breaks on carbon emissions. Dozens of people across western US states have been treated for exhaustion and dehydration, as the region is continuing to bake in a heat wave. A... show more Reports are also that unknown number of livestock decimated, fears of price hikes abound. How much more people suffer before we put the breaks on carbon emissions.

Dozens of people across western US states have been treated for exhaustion and dehydration, as the region is continuing to bake in a heat wave.

A man in Las Vegas is believed to have died from a heat-related illness.

Air-conditioned "cooling centers" have been set up in California, Nevada and Arizona, as officials warn the heat could be life-threatening.

Temperatures in some areas are expected to be near 54C (130F) - close to the world's all-time record.

Several parts of California - including the desert town of Palm Springs - saw record highs on Saturday.

There are fears of wildfires, as the heat could last for several days.
Pushed to the limit

More than 34 people were taken to hospital after attending an outdoor concert in Las Vegas, Nevada, officials said.

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