Clean air repeal - The US EPA last Friday sent Congress four additional California Clean Air Act waivers, opening the door for Republicans to use the Congressional Review Act to repeal federal approvals for state vehicle and equipment emissions rules dating back to the Obama administration, E&E News reported. The waivers include California’s first GHG waiver for light-duty vehicles, later Advanced Clean Cars standards through model year 2025, the Biden administration’s reinstatement of those rules, and a separate rule requiring small off-road engines such as lawn equipment and golf carts to shift to zero-emission options. Repeal would remove a remaining pathway for California and more than a dozen aligned states to enforce tailpipe climate standards after the EPA revoked federal limits earlier this year, escalating an ongoing legal and political fight over whether Congress can use the CRA to unwind years-old waiver decisions.

A wide range of developing country negotiating blocs – from middle-income and fossil fuel-rich, to the poorest and smallest – voiced concerns and opposition to unilateral trade measures, like border carbon fees, in one of the UN's first dialogues on climate-related trade issues. 

Nodal Exchange launched several new environmental futures and options contracts, including for CORSIA.

The landmark Santa Marta process on transitioning away from fossil fuels can help overcome the “deadlock” in UNFCCC talks, a Colombian official said during mid-year talks in Bonn on Monday.

CORSIA futures were little changed last week, with benchmark contracts on ICE slipping below $10/tonne mark after stabilising in recent weeks following a prolonged decline.

From Mexico to Brazil, state support and regulations appear to be influencing the scale and bonus attributes that carbon project developers plan for in their initiatives.

A US federal court has vacated 11 DOE grant termination notices after the Trump administration stipulated that a primary reason the awards were selected for cancellation was whether the grantee was located in a “Blue State”.

The introduction of specific price anchors for companies choosing to set an internal carbon price under the newly released Science Based Targets initiative's (SBTi) Corporate Net-Zero Standard, will help to 'avoid race-to-the-bottom dynamics' and provide viable financial support to many carbon projects, according to experts.

Governments around the world have urged the EU to simplify what they describe as overly prescriptive and complex requirements for complying with its Carbon Border Adjustment Mechanism (CBAM).

Hopes that G7 countries will help to spur a shift from fossil fuels are dimmer this year, with the term 'climate change' omitted from the agenda – but campaigners are still hoping to see advancements through the prism of 'energy security'.

Track submissions of National Biodiversity Strategy and Action Plans (NBSAPs) and interest in biodiversity credits ahead of COP17 through the Biodiversity Portal.

Guyana’s jurisdictional REDD+ (J-REDD+) programme is blowing past prior annual revenue figures, bringing in some $196 million this year, according to Carbon Pulse calculations based on statements made by the government.

Businesses across 18 markets increasingly view clean electrification as a way to reduce exposure to fossil fuel volatility, lower long-term costs, and strengthen competitiveness, according to a polling report released Monday.

Art of the deal - Prices of benchmark crude oil fell as much as 4% on Monday to touch $80/bbl after US Predisent Donald Trump announced a deal to end the conflict with Iran will be signed this Friday. It comes after weeks of negotiations and ceasefire violations between the two countries. Trump added that the Strait of Hormuz, through which nearly a fifth of global energy supplies and crucial processed commodities like jet fuel oil passed before the conflict began, will also reopen indefinitely and without tolls on Friday. Under the preleminary deal, more thorny issues like Iran's nuclear programme and sanctions relief will be discussed over the next 60 days.

Global biochar production has nearly tripled in the past two years and is projected to reach more than 9 million tonnes annually by the end of the decade, as the carbon removal technology moves from an emerging industry into large-scale commercial deployment, according to a new market report.

Negotiators and observers are questioning how the UN’s process of assessing Article 6.2 initial reports could become more iterative and better at isolating major concerns, as common reporting pitfalls have led UN teams to declare inconsistencies in every review to date.

Flight path – California-based chemical technology company Twelve, along with Alaska Airlines, and Microsoft, on Wednesday marked the opening of AirPlant One in Washington state, which the companies said is the first commercial-scale US facility producing E-Jet fuel – a type of sustainable aviation fuel (SAF). They said the E-Jet fuel produced at AirpPlant One meets American Society for Testing and Materials (ASTM) standards for commercial aviation use, as well as E-naphtha. The company added that the facility marks the start of commercial-scale production and sets the stage for US commercial flights powered by jet fuel made from air.

Target trouble – The Senate Committee on Energy, the Environment and Natural Resources has urged the federal government to strengthen emissions reduction measures, warning that Canada is not on track to meet its legislated 2030 GHG emissions target. In a statement released Friday, the committee cited projections in the government's 2025 Progress Report on the 2030 Emissions Reduction Plan, showing Canada will miss the goal despite progress in reducing emissions. The committee noted that emissions reductions can also support investment and economic competitiveness when businesses have clear policy direction for the low-carbon transition.