Andrew Revkin

I'm like, if someone had told me in 1993 that EDF was going to launch a methane satellite, I would have laughed out loud.

So technology plays a huge role if it's kind of

employed with the bigger vision and leadership.

Yeah, I see no evidence that that's even... Hold on a second.

I'm not worried about the sea level rise component.

Certainly not nearly as much as the heat and disruption of agriculture patterns and water supplies.

And a lot of it relates to, again, path dependency and history.

Farmers are the heroes of humanity all through history because they're incredibly adaptable if you give them access to resources.

In some cases, it's just crop insurance, which is really basically still impossible to get in big chunks of Africa to get you through those hard spots.

But the heat issue is the one that's most basic element related to global warming from CO2 buildup is hotter heat waves.

There's still some lack of evidence of the intensification, but the duration and that's what really matters for heat is how many days seems to be very powerfully linked to global warming.

And so how many people die as a result of that is important.

Well, yeah, although this gets us into the modeling realm.

You have to assume different emissions possibilities.

You have to assume we still don't know the basic physics, like how many clouds form in a warming climate and how that relates to limiting warming.

There are aspects of the fundamental warming question that are still...

It's in that range.

Well, yeah, and getting back to sea level and glaciers, the melting point of ice is a number.

Yeah.

And so if you pass that number, things start to change.