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Kyle Meng

@kylemeng.com

Professor at UCSB Bren School and Econ Dept. Climate and Energy Director at emLab. Former White House CEA Senior Climate Economist. Associate at @nber.org @csis.org. Board member @ucsusa.bsky.social. Personal views. www.kylemeng.com

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Kyle Meng@kylemeng.com · 5mo ago

There's some misguided messaging out there in California trying to take advantage of high gas prices from the Iran bombings and CARB's cap-and-invest rule making. Some are using this moment of high gas prices to delay CARB's cap-and-invest rule making. 1/

Fuel, energy prices raise the pressure as California officials take next steps on climate

A plan to strengthen California's climate program faces pushback as industry groups and some lawmakers warn the changes could drive up already-high energy costs.

latimes.com

Kyle Meng@kylemeng.com · 6mo ago

So much coverage on the EPA endangerment repeal but has anyone actually seen the final rule? Not on WH, EPA, or Federal Register sites. Where is this actual repeal?

Kyle Meng@kylemeng.com · 6mo ago

My commentary for @csis.org on the U.S. Clean Competition Act. It covers where CCA situates in the geopolitical/climate landscape and our @emlab.ucsb.edu modeling of CCA's U.S. & global economic and climate impacts. emLab policy brief: linkly.link/2YlqQ emLab executive summary: linkly.link/2YlqB

Can the 2025 Clean Competition Act Cut Global Emissions and Maintain U.S. Competitiveness?

The 2025 U.S. Clean Competition Act addresses the twin challenges of maintaining U.S. industrial competitiveness and accelerating industrial decarbonization by pairing a domestic performance fee with ...

csis.org

Kyle Meng@kylemeng.com · 7mo ago

If you you miss reading a proper cost-benefit analysis of environmental policy, one that fully accounts for costs AND benefits, here's California CARB's proposed GHG cap-and-invest regulations, dropped at noon. No "we won't value public health benefits just because they're uncertain" shenanigans.

Cap-and-Invest Regulation | California Air Resources Board

Proposed 2026 Amendments to the Cap-and-Invest (formerly Cap-and-Trade) Regulation The preliminary documents posted below have been submitted to the Office of Administrative Law (OAL) and may be modif...

ww2.arb.ca.gov

Kyle Meng@kylemeng.com · 8mo ago

Sen. Whitehouse, Rep. DelBene, & co-sponsors just introduced a revamped Clean Competition Act (CCA). CCA is the most ambitious & meticulously crafted climate policy from this Congress. It lays a marker for what US policy looks like in this era of geopolitical competition. 1/ #climatesky #energysky

Whitehouse, DelBene Reintroduce Carbon Border Adjustment to Boost Domestic Manufacturers, Tackle Climate Change

Clean Competition Act bolsters American companies’ competitiveness and cuts emissions at home and abroad Washington, D.C. - Senator Whitehouse (D-RI), Ranking Member of the Senate Committee on E...

epw.senate.gov

Kyle Meng@kylemeng.com · 8mo ago

Our "Dodging Day Zero" paper is out in JEEA. We uncover how Cape Town avoided 2017's catastrophic drought. But in doing so, created longer term sustainability challenges and weakened the fiscal viability of public water. A lesson for the 1B living in drought vulnerable cities. #climatesky #econsky

@jeeanews.bsky.social · 8mo ago

Forthcoming article "Dodging Day Zero: Drought, Adaptation, and Inequality in Cape Town" by Alexander Abajian, Cassandra Cole, B Kelsey Jack, @kylemeng.com and Martine Visser @eeanews.bsky.social doi.org/10.1093/jeea...

Kyle Meng@kylemeng.com · 9mo ago

Our PhD job market candidates continues UCSB’s proud tradition in environmental and resource economics. Here are our students on the market this year (in alphabetical order). #econsky

Kyle Meng@kylemeng.com · 11mo ago

Governor Newsom just reauthorized California’s centerpiece climate policy - cap and invest - for the next two decades, reducing pollution and electricity prices in the world’s 4th biggest economy. This is now the US’ most important climate policy.

BildBild
Kyle Meng@kylemeng.com · 11mo ago

California has a little over 24 hrs to release legislative language on cap & trade reauthorization. Hard to imagine the most significant U.S climate policy in the foreseeable future with such stakeholder and political support is cutting it this close. #climatesky #energysky

Andrew Dessler@andrewdessler.com · 11mo ago

Our comment on the DOE CWG report is done. It tips the scales at 439 pages, approx. 3x longer than the DOE report. This is related to Brandolini's law: The amount of energy needed to refute bullshit is an order of magnitude bigger than that needed to produce it. Example: refuting one sentence.

DOE CWG STATEMENT (second paragraph of section 2.1.1, page 3): “Piao et al. (2020) noted that greening was even observable in the Arctic.” COMMENT: This statement implies that the Arctic greening signal was caused by elevated CO2 , however that is not the scientific consensus. Piao et al. (2020) attribute the greening trend in the Arctic predominantly to growing season length driven by warmer temperatures (see also Y. Zhang et al., 2022). Piao et al. (2020) also note that this positive impact of increasing temperatures appears to have weakened over the past four decades, “suggesting a possible saturation of future greening in response to warmer temperature” (see also comment on greenness trends related to Section 2.1.1, first sentence of Page 4). It is also important to put Arctic greening more broadly into the context of the carbon cycle and other impacts. While above-ground plants may have displayed more leaf area over the past decades, rising temperatures also thaw permafrost and drive accelerated decomposition in highly carbon rich soils (Turetsky et al., 2020), a process which is expected to accelerate as climate continues to warm (Miner et al., 2022). Thus even with Arctic greening, high latitude terrestrial systems may become net carbon sources to the atmosphere, causing an amplifying feedback (Braghiere et al., 2023). Other risks to the Arctic linked to higher CO2 levels and rising temperatures are not mentioned in this report (Virkkala et al., 2025). The Arctic is warming at a rate of 2 to 3 times the global average, leading to thawing of permanently frozen soils (permafrost), with downstream impacts including loss of structural support for buildings and subsidence, threatening communities, roads, runways, and other assets across Alaska (Manos et al., 2025; University of Alaska Fairbanks Institute of Northern Engineering US Army Corps of Engineers Alaska District & Laboratory, 2019).
Kyle Meng@kylemeng.com · 11mo ago

Recent CA Assembly movement in cap-and-trade bill may have propped up permit prices in today's CARB auction. But CA still losing revenue from C&T uncertainty: today's revenue could have been ~$300M more under last year's prices. CA policymakers need to reauthorize C&T. #energysky #climatesky

Press Release: Sluggish Auction Results — Market Still Waiting for Leadership to Recommit to California’s Cap and Trade Program   — Clean and Prosperous California

CAP California Press Release on August 2025 Auction Results  

cleanprosperousca.org

Kyle Meng@kylemeng.com · 12mo ago

The most important U.S. climate legislation over the next few years is out! ASM Irwin's draft California Assembly Bill 1207 reauthorizes California's ground breaking GHG cap-and-trade (C&T) program. Here are 5 key takeaways from AB 1207 1/

politico.com