Climate Change

Towards Optimal Climate Policy, Part II

The future of effective climate policy requires balancing equity, efficiency, political feasibility, and technological innovation

In the prior blog post in this two-part series, I talked about how current debates on climate policy that are focused on equity and efficiency are inadequate. Today, I’ll explain how we might advance political feasibility through climate policy, how that is connected to technological innovation, and how we must necessarily balance between all four …

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Public Opinion and the Limits of Climate Policy

There’s a simple reason why it’s so hard to take bold climate actions nationally.

Gallup has studied environmental attitudes in America for several decades.  Their historical compilation is very revealing about our present political situation. It sheds light on why it’s been so hard to develop momentum for real change at the national level, and also about why there’s so much more of a push for change within the …

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Towards Optimal Climate Policy, Part I

Moving the debate beyond equity and efficiency

As Congress debates two large pieces of legislation – both a bipartisan infrastructure bill and a partisan reconciliation package – a key question is the extent to which either piece of legislation (assuming it is enacted) addresses climate policy. And the recent flooding in Europe, the wildfires in the western US and Russia, and more …

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Major International Climate Developments

China and the EU took important steps forward this week.

This week has seen some big climate moves on opposite sides of the world. The EU has proposed a major new climate plan. Meanwhile, China is ready to go live with its emissions trading system. The U.S. is at risk of being left behind. The EU’s proposal is impressive. The goal is to cut  net …

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Earth System Interventions for Sustainability

Brand in 2020, via Cmichel67 at Wikimedia.

We actively shape major Earth systems, with increasingly powerful technologies. We should face up to it.

Stewart Brand–a contender for the most interesting living person in the world–famously opened the Whole Earth Catalogue in 1969, “We are as gods and might as well get good at it.” Importantly (and often misunderstood), he meant not that we are gods, but instead that technologies have given humanity powers that had previously been exclusive …

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Calculating the  Extinction Cost of Carbon

Or, how many megatons do we need to cut to prevent one extinction?

Economists often talk about the social cost of carbon, which basically translates the harm done by a ton of CO2 into dollars. The dollar metric is less useful as applied to ecological impacts like species extinctions than impacts of humans.  It may be better to skip the dollar conversion, and just ask how much a …

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Climate News from Capitol Hill

There are small but hopeful signs of progress in overcoming legislative gridlock.

Over a decade ago, the Waxman-Markey carbon trading bill died in the Senate. President Obama then had to rely entirely on administrative actions to address climate change. Republicans united in a solid wall of violent opposition to climate action.  There are some hopeful signs that things may not be quite so tough for President Biden. …

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Facing Up to Reality

More frequent heat waves. Droughts. Wildfires. The West is getting a glimpse of its future climate.

The western U.S. is staring climate change in the face. Most of the West is experiencing “severe” or “exceptional” drought. We could be heading into the worst drought period in centuries. Major dam reservoirs are down to record low levels. The region is also in the grips of a record-breaking heatwave.  We can expect another …

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Why I Was Wrong About Methane

I didn’t think cutting methane was a high priority. Now I do. Here’s why.

I didn’t use to think that eliminating methane emissions should be a priority. True, methane is a potent greenhouse gas. But it’s also a short-lived one, which only stays in the atmosphere for twenty years or so. In contrast, CO2 emissions cause warming for 2-3 centuries or more. So methane emissions seemed to be something …

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The Hidden Green-Infrastructure Bill

Every year, Congress provides lavish funding for clean energy and climate adaptation. No one notices.

Biden’s green-infrastructure bill is headline news.  Republicans are up in arms. Yet every year there’s already a green-infrastructure bill.  Hardly anyone notices. Republicans vote for it without a fuss.  Why?  It’s part of the annual funding bill for the military. The Defense Department remains the biggest single consumer of energy in the country, and it …

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