Right now India is one of the hottest places on the planet and much of this past month

has been brutal but South Asia is hardly the only place suffering extreme heat.

It's still may and temperatures are already abnormally high in some parts of the US,

Mexico and elsewhere.

William Bringham has the latest.

Um, the temperatures in India's capital, New Delhi, where 35 million people live, reached

122 degrees Fahrenheit this week.

It's driving reports of heat-related deaths and illnesses across the country. At night, the temperatures

are still well over 90 degrees. At the same time, New Delhi is also dealing with a

critical water shortage. Residents are struggling day to day.

I keep myself hydrated. I drink water, lemon water, and protect my head with a piece of cloth.

I sit in the shade and drink buttermilk to benefit.

Otherwise it is too hot out here. Because of heat our conditions have gone from bad to worse.

There's no relief even from shade sometimes. I have to drink five, six liters of water every day in the

afternoon. Across the world in Mexico where there's a drought as well,

hauler monkeys have been dying off in 100 degree plus heat. Here in the US, Miami just recorded

its hottest May on record with temperatures in the 90s and a heat index approaching 110.

They're expecting triple digits in Phoenix this weekend.

To help us understand more about what's driving this,

we are joined by Andrew Pershing.

He is the director of Climate Science at Climate Central.

Andrew, thank you so much for being here. First off, what is driving this? Is this as simple

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