Cali cap-and-invest - California regulator ARB will conduct a public hearing on its proposed changes to its cap-and-invest programme, formerly known as cap-and-trade, according to a notice circulated Tuesday. The hearing will take place on May 28 at 0900 PST (1700 GMT).

RGGI Allowance (RGA) futures dropped last week into the US holiday Monday, though prices began to recover on Tuesday.

An accelerated adoption of electric vehicles (EVs) in Brazil could mean savings of up to R$1.39 trillion by 2050 ($250 billion), according to a report published on Tuesday.

Conversations on risk could be an ideal vehicle for bringing nature and biodiversity into the corporate consciousness, a panel heard during the World Economic Forum’s annual meeting in Davos on Tuesday.

SAF purchase - Trafigura has signed a six-year deal for sustainable aviation fuel (SAF) offtake from SP Developments Uruguay (Syzygy)'s first commercial facility, the commodities group announced on Tuesday. The agreement covers all of the production volume from the Uruguay flagship plant, which will produce SAF from biogas using renewable electricity, and gives Trafigura the option to purchase additional volumes from Syzygy's future projects. The companies aim to make the first deliveries in 2028. Syzygy's technology has received ISCC pre-certification to produce RFNBO- and advanced bioSAF-compliant fuels, which means it could help to meet rising SAF mandates in the EU, UK, and elsewhere.

Retrofitting carbon capture and storage (CCS) systems at US pulp and paper mills could convert the facilities from net emitters into carbon sinks, though reported removal rates depend heavily on how emissions boundaries are defined, according to a study published this month.

The Science Based Targets initiative's (SBTi) updated Corporate Net-Zero Standard is set to recognise companies using carbon credits to compensate for their ongoing emissions as they transition towards net zero.

A Calgary-based carbon offset provider has secured C$25 million ($18.1 mln) to scale its platform.

A carbon removal standard has issued the world’s first certified carbon removal credits from river alkalinity enhancement (RAE), they announced Tuesday.

Gold Standard has risked creating “serious operational bottlenecks” that could undermine investor confidence after it said fresh vintage credits must be Paris-aligned, warns a lobby group for project developers.

Carbon crediting rules for enhanced rock weathering (ERW) on farmland may be relying on flawed monitoring approaches and should focus on tracking weathering-derived cations rather than carbon flows in soils, according to a recent academic review.

While the US move to withdraw from the UN Framework Convention on Climate Change (UNFCCC) has reopened unresolved constitutional questions over presidential authority, legal experts say the decision is unlikely to materially weaken domestic climate litigation or existing legal obligations.

A local infrastructure firm has committed C$10 million ($7.2 mln) to support the development of a biocarbon facility in Northern Ontario, which aims to produce up to 50,000 tonnes annually, the project’s developer said.

Data delivery - Chloris Geospatial is partnering with re.green, a developer of ecological restoration projects in the Amazon and Mata Atlantica, as announced on LinkedIn. By joining forces, the two aim to combine large-scale ecological restoration with advanced, space-borne data to make scaling nature-based projects more accurate, transparent, and reliable. It will see Chloris provide above-ground biomass data to re.green to support robust, high-quality dynamic baselines, aligned with recent carbon methodology requirements.    

A California-headquartered and Alberta-incorporated carbon management firm and a UAE-based investment platform have launched a jointly governed vehicle aimed at investing up to $100 million in decarbonisation and energy transition projects by end-2027, they announced Tuesday.

The total number of companies that have climate targets validated by the Science Based Targets initiative (SBTi) rose to nearly 10,000 corporates in 2025, up 40% year-on-year, data published by the organisation and tracked by Carbon Pulse indicates.

First climate roadmap - E-commerce giant eBay last week released its inaugural Climate Transition Plan, setting out a science-based pathway to net zero emissions by 2045 and aligning its operations with long-term climate goals. The plan includes validated targets under the Science Based Targets initiative (SBTi), including a 90% cut in full value chain emissions by 2045, and a 27.5% reduction in Scope 3 emissions from downstream transport and distribution by 2030. The strategy also integrates climate risk into financial planning and governance, and outlines actions to scale sustainable commerce through its circular marketplace model. Measures include low-emission logistics partnerships, supplier engagement, local delivery incentives, and a commitment to neutralise any remaining emissions through durable CDR by 2045. The company said it had already reduced Scope 1 and 2 emissions by 92% from 2019 levels and achieved 100% renewable electricity across its operations.

There are at least two viable ways to couple sovereign debt relief with carbon markets, rewarding measurable mitigation outcomes, according to the lead author of a discussion paper published Tuesday by an environmental non-profit and a think tank.

Steaks, burgers, and other meat should be taxed more in the EU to help change people’s diets and cut related greenhouse gas emissions around the world, according to a new study.

Science Based Targets initiative’s (SBTi) proposal to use only removals, and not high-integrity reductions, for corporate climate action is “misaligned with the Paris Agreement” and risks slowing decarbonisation efforts, according to a note from an investment platform.