Threshold

After decades of scientific study and political wrangling the world has agreed—at least on paper—that 1.5C of heating must be the upper limit of our impact on the climate system. How could something that sounds so small matter so much?

This is Threshold Season 4: “Time to 1.5.” In this episode, we take you inside the scientific and political origin story of 1.5C, from the holocene to the halls of COP26 in Glasgow. 

Learn more about Threshold on our website...

Humanity has a mission right now: to keep global heating to no more than 1.5 degrees Celsius over pre-industrial levels. Science tells us that we have less than a decade to do it, and that if we don't, the consequences will be dire.

That's humanity's mission, and that's what season 4 of Threshold is about. It’s called “Time to 1.5...

For the last few months now, we’ve been telling you that we’re working on season four of Threshold. But we haven't told you what it's about. We're going to fix that now...sort of. We're going to tell you a story of something Amy did several years ago—something that very nearly had disastrous consequences—which is kind of a metaphor for what season four is all about. Consider this a strong hint about what's to come in just a few weeks...

The Threshold team is in Glasgow to cover what's happening at COP26 - the 26th time leaders from around the world have gathered to try to solve humanity's biggest and most complicated problem: the damage we're doing to Earth's climate. Today, we're looking back on the last two weeks in the *supposed* final hours of the conference.  

This is part of our reporting for season four of Threshold, which will be coming out in a few months...

The Threshold team is in Glasgow to cover what's happening at COP26 - the 26th time leaders from around the world have gathered to try to solve humanity's biggest and most complicated problem: the damage we're doing to Earth's climate. Today, we're looking at loss and damage, a crucial part of the conversation at COP26. 

This is part of our reporting for season four of Threshold, which will be coming out in a few months...

The Threshold team is in Glasgow to cover what's happening at COP26 - the 26th time leaders from around the world have gathered to try to solve humanity's biggest and most complicated problem: the damage we're doing to Earth's climate. Today, we're looking at protests both inside and outside the conference. 

This is part of our reporting for season four of Threshold, which will be coming out in a few months...

The Threshold team is in Glasgow to cover what's happening at COP26 - the 26th time leaders from around the world have gathered to try to solve humanity's biggest and most complicated problem: the damage we're doing to Earth's climate.

This is part of our reporting for season four of Threshold, which will be coming out in a few months...

The Threshold team is in Glasgow to cover what's happening at COP26 - the 26th time leaders from around the world have gathered to try to solve humanity's biggest and most complicated problem: the damage we're doing to Earth's climate.

This is part of our reporting for season four of Threshold, which will be coming out in a few months...

It’s time for our annual listener survey! We’re inviting your feedback to help us improve the show, get to know you, and reach new listeners. 

Please go to thresholdpodcast.org/survey to fill out the survey. You’ll have our gratitude and a chance to win a $100 to Shop at MATTER, an independent bookstore.

In this special episode, we feature one of the many podcasts we love. New Hampshire Public Radio’s Outside/In is a show about the natural world and how we use it. In the coming decades, the scale of migration linked to climate change could be dizzying...