Rebecca Hersher

speaker

559 appearances 28 recordings 3 series first heard Jul 2025 last heard 20 Sep

Rebecca Hersher’s voice in public audio — every appearance, attributed to the second.

Trend

recordings per month · last 12 months

Recordings per month over the last 12 months — 24 in all, peaking in Sep 2026 with 5.

Appearances

newest first · ▶ plays the moment

Short Wave · Nature Quest: How High Will Sea Levels Rise? · 30 Sep 2025 podcast

Get out of here.

Yeah, if only if we're that simple.

So basically, the answer is yes.

Scientists have a really good idea of how much sea levels will rise in the next three decades or so.

And I'm going to give you some concrete numbers because just from listening to Peter, I kind of get the feeling that that is what he's yearning for.

Okay, so let's start really big picture.

Globally, the oceans are about nine inches higher today than they were in the 1880s.

So that's the worldwide average for all the oceans everywhere.

And sea level rise is accelerating.

So by 2050, sea levels are projected to be about 15 inches higher than they were in the 1880s.

Again, that's the global average, the whole planet.

How sure are scientists about those numbers?

They're really sure.

So 2050 is actually pretty soon in scientific terms.

And it takes time for the planet to react to the extra heat that humans have trapped in the atmosphere.

So even if humans totally stopped burning oil and gas and coal today, there would be a lag while all that extra heat dissipated and the glaciers stopped melting.

And that lag would take decades.

Yeah, there's just there's not a lot of scientific uncertainty about what's happening in the couple decades between now and 2050.

Indeed.

Yes.

Showing 421–440 of 559 · page 22 of 28