climate models Archives

climate models

Using and Abusing Models: Lessons from COVID-19

We’ve seen some great examples of how NOT to deal with models.

Models have figured heavily in government responses to the coronavirus. This has given us the opportunity for a real-time lesson in the uses of models. In the process, we’ve learned some important lessons in how to best make use of models — and equally importantly, in how not to use them. That’s directly relevant to …

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How Hot Will Things Get?

Identifying a realistic worst case scenario is complicated.

How hot will the world be in 2100? The answer partly depends on how much carbon we dump in the atmosphere between now and then. It also depends on how sensitive the climate system is to those emissions. Scientists have used 4.5 °C as the high end of the likely possibilities. That estimate derives from …

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Whither the Social Cost of Carbon?

Trump rescinded the Obama Administration’s estimate. Now what?

Republicans vehemently attacked the Obama Administration’s estimate of the social cost of carbon. Trump withdrew that estimate and directed individual federal agencies to do their own estimates. The agencies will now be faced with a number of problems, and it’s not clear that they are well positioned to deal with them. They might prefer to …

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Climate Fatigue

You might be tired of climate change. But climate change isn’t tired of you.

I gather that people are tired of hearing about climate change. I’m tired of hearing about climate change, too. Sadly, Nature just doesn’t care that much about entertaining us. It’s going to be climate change this year, climate change next year, climate change the year after that . . . But don’t worry, it won’t …

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Human Fingerprints on Australia’s Record Heatwave

Australia — or at least Australia’s current government — downplays the danger of climate change. But, as a famous physicist once said, “reality must take precedence over public relations, for nature cannot be fooled.” Last summer in Australia (corresponding to the winter months up here) broke many, many records. it was the hottest summer on record, …

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The Climate Gamble

Paul Krugman has a review of a new book by William Nordhaus about climate policy. By way of preface, I should say that Nordhaus is not particularly popular with environmentalists, who have generally considered him as too conservative in his policy recommendations. Nordhaus does, however, more or less define the mainstream view — he’s very …

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Heads in the Snow

This isn’t news to any of our readers, but as a massive winter storm descends on the East Coast, let us be clear about one thing: The existence of a terrible, extreme snowstorm, far from belying the existence of “global warming”/climate change, actually confirms it. According to every model and every prediction of the phenomenon, climate change will …

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Climate Change May Be More Severe Than Previously Expected

The Washington Post reports on a new study with grim implications about climate change. The study suggests that temperature increases by the end of the century will be at the upper end of predictions — 8°F. (Keep in mind that this is the global average — the change will be lower over the oceans but …

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Comparing Climate Models with Reality

Despite some year-to-year variation, the models are doing very well in predicting the overall global temperature trends.

Clarifying a Cloudy Situation

One of the biggest difficulties in climate models is posed by clouds. Modelers need to know what kinds of clouds will form, at what altitudes, and with what precipitation resulting. These turn out to be very hard to calculate, and scientists use heuristic approximations to fill the gaps. A new study suggests that on the …

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Losing Chevron: What Does It Mean for California?

The Supreme Court’s decision in Loper Bright will not necessarily impact how California courts review our state agency determinations. But we’ll feel it in other ways.

Is Loper v. Raimondo Really the Power Grab Commentators Assume?

The Supreme Court has already grabbed power from agencies through the major questions doctrine.

The Biden-Trump Debate’s Climate Question

“You’ve vowed to end your opponent’s climate initiatives,” Trump was asked. “But will you take any action as President to slow the climate crisis?”

Grid Experts Weigh in on EPA’s Good Neighbor Plan for NOx

UCLA Emmett Institute faculty submit amicus brief in Utah v. EPA, a major ozone case, on behalf of some of the nation’s leading grid experts.

The Supreme Court & Interstate Pollution

It was puzzling that the Court agreed to hear the case. How has it ruled? And why?

The Ten Most Important U.S. Environmental Laws

Some of the choices may surprise you.

The 2023 NEPA Rewrite and the Supreme Court’s New Climate Case

NEPA isn’t a common law subject. What the statute says matters more than pre-2023 judicial opinions.

The Hawai’i Youth Climate Settlement

Thirteen youth plaintiffs secured a court-enforced agreement to decarbonize the state’s transportation system without even setting foot in a courtroom.

Luminosity

The story behind today’s energy efficient lighting and a forgotten episode in the culture wars.

Is Activism a Part of Responsible Climate Scholarship?

Academics needn’t become activists, but I argue that we must support activism. Indeed, inclusive engagement with activism could enhance our scholarship.

Big Oil Runs to the Supreme Court

Oil and gas companies want the justices to take up Honolulu’s climate liability case because this type of litigation is starting to gain strength.

A Brazen California Water Heist Revealed, Prosecuted & Punished

San Joaquin Valley Water District Manager Pleads Guilty to Conspiring to Steal Public Water for 20+ Years

Can the IRA Trump-Proof Itself?

Building A Political Firewall Against IRA Repeal

Will Biden and Trump Debate Climate Change?

Here are 22 climate-related questions that moderators could ask Biden and Trump in the presidential debates, as well as the one question they should avoid.

Reforming California’s Financial Penalties for Water Theft Will Create an Effective Deterrent

Overdue State Water Reform Legislation Likely Be Enacted in 2024–Finally

Hillary Clinton, Climate Change, and the ‘Sliding Doors’ of History

Here’s what could have happened instead of Trump’s crusade against climate action, if Clinton had squeaked out a victory in 2016.

The Hawai’i Youth Climate Trial

Thirteen youth plaintiffs say the Aloha State is failing to live up to its ambitious climate goals. Here’s what to watch for as Navahine v. Hawaiʻi Department of Transportation goes to trial this month.

Major League Soccer’s LAFC Has a Big Oil Problem Too

The Dodgers are not the only LA sports team sullying their brand by taking oil money. Beloved soccer club LAFC recently renewed a partnership with Chevron.

The “Silver Bullet” Required to Improve California’s Water Rights System: More & Better Data

California Lags Behind Other Western States in Obtaining Critically-Needed & Available Water Diversion Data

The Hawai’i Youth Climate Settlement

Thirteen youth plaintiffs secured a court-enforced agreement to decarbonize the state’s transportation system without even setting foot in a courtroom.

climate models

We’ve seen some great examples of how NOT to deal with models.

Identifying a realistic worst case scenario is complicated.

Trump rescinded the Obama Administration’s estimate. Now what?

You might be tired of climate change. But climate change isn’t tired of you.

TRENDING

The Supreme Court’s decision in Loper Bright will not necessarily impact how California courts review our state agency determinations. But we’ll feel it in other ways.

The Supreme Court has already grabbed power from agencies through the major questions doctrine.

“You’ve vowed to end your opponent’s climate initiatives,” Trump was asked. “But will you take any action as President to slow the climate crisis?”

UCLA Emmett Institute faculty submit amicus brief in Utah v. EPA, a major ozone case, on behalf of some of the nation’s leading grid experts.

It was puzzling that the Court agreed to hear the case. How has it ruled? And why?

Some of the choices may surprise you.

NEPA isn’t a common law subject. What the statute says matters more than pre-2023 judicial opinions.

Thirteen youth plaintiffs secured a court-enforced agreement to decarbonize the state’s transportation system without even setting foot in a courtroom.

The story behind today’s energy efficient lighting and a forgotten episode in the culture wars.

Academics needn’t become activists, but I argue that we must support activism. Indeed, inclusive engagement with activism could enhance our scholarship.

Oil and gas companies want the justices to take up Honolulu’s climate liability case because this type of litigation is starting to gain strength.

San Joaquin Valley Water District Manager Pleads Guilty to Conspiring to Steal Public Water for 20+ Years

Building A Political Firewall Against IRA Repeal

Here are 22 climate-related questions that moderators could ask Biden and Trump in the presidential debates, as well as the one question they should avoid.

Overdue State Water Reform Legislation Likely Be Enacted in 2024–Finally

Here’s what could have happened instead of Trump’s crusade against climate action, if Clinton had squeaked out a victory in 2016.

Thirteen youth plaintiffs say the Aloha State is failing to live up to its ambitious climate goals. Here’s what to watch for as Navahine v. Hawaiʻi Department of Transportation goes to trial this month.

The Dodgers are not the only LA sports team sullying their brand by taking oil money. Beloved soccer club LAFC recently renewed a partnership with Chevron.

California Lags Behind Other Western States in Obtaining Critically-Needed & Available Water Diversion Data

Thirteen youth plaintiffs secured a court-enforced agreement to decarbonize the state’s transportation system without even setting foot in a courtroom.