Why is 1.5 degrees such a big deal?

[Kristen] Why is 1.5
degrees such a big deal?

Because to warm our entire
planet up by 1.5 degrees Celsius

requires a lot of heat.

All this extra heat melts
glaciers, which raise sea levels.

If the ice sheets of Antarctica

and Greenland melt completely,

millions of people's
homes will be underwater.

The extra heat also intensifies weather,

making wet places
wetter, dry places drier,

and increasing the ferocity of storms.

That 1.5-degree increase also
won't be distributed evenly.

The coldest nights in the Arctic

might get 10 degrees warmer.

The warmest days in Mumbai
might get five degrees hotter.

Over the past 10,000
years, we've been lucky.

Earth's climate was stable and
our civilizations flourished.

But as our climate gets more unstable,

so will our economies and our societies.

We'll all suffer and the
vulnerable will be hit hardest

unless we act now.