Extreme heat and flooding are set to deal a massive blow to the global fashion industry, with four of the world's top garment producing countries at risk of missing out on $65 billion in earnings by 2030, according to a study from Cornell University and investment manager Schroders.

The UN says countries must act urgently to protect children from the harmful effects of climate change.

The current death toll is a mere snapshot of the fatal toll this searing summer is taking. And experts say that estimate is likely far lower than the actual number of lives lost to the excruciating heat.

In mid-July at the construction site at 1 Java Street in Brooklyn, New York, the outside temperatures can reach sweltering highs in the 90s. But 500-feet underground, it's 55 degrees all year round.

A 119-degree day in Phoenix hits like a blast of hot air from the oven with no relief in sight, and for a business owner like Lyn Thomas, there's hardly any avoiding it.

Extreme heat will generate about $1 billion in health care costs every summer as more people get rushed to the emergency room or admitted to the hospital to treat temperature-related conditions, a recent study found.

Extreme heat in the summer has become America's brutal new reality. But local, state and federal aid programs and infrastructure to help people cool down haven't kept up with the country's record-shattering temperatures.

More than 230 economists and political leaders have called on the United Nations and the World Bank to do more to tackle the widening gap between the rich and poor around the world, a problem they say many governments are ignoring.

The Earth recently recorded its hottest day ever -- a record experts warn will likely be repeatedly broken as the climate crisis drives temperatures higher and higher.