My dearest river, I'm sorry we broke your sea and your sky.

I'm sorry that the Great Barrier Reef is no longer great.

That's my colleague Bill Weir, CNN's chief climate correspondent.

He's reading a letter he wrote to his newborn son, River.

At the last, the milk in your bottle was warmed by dirty ancient fuels

and as a result, you were among the first babies ever to tuddle on a planet this warm.

We're just now wrestling with the implications of this, but for me,

the most point in evidence is that your mother was forced to give you your first kiss

through a P100 mask.

Today is Earth Day, a day for celebrating and appreciating our planet

and embracing the outdoors.

But this year, many of us find ourselves stuck indoors

and with very little to celebrate.

Coronavirus has upended our lives,

but it's also teaching us lessons about ourselves and our planet.

I'm Dr. Sanjay Gupta, CNN's chief medical correspondent.

And this is Coronavirus, fact versus fiction.

For this special Earth Day episode, I wanted to ask Bill about the connections

between climate and Coronavirus.

Our conversation, though, started on a personal note.

The birth of his son 15 days ago.

So grateful to have this little bundle, this nugget of new life and love

...