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Pennsylvania's attempt to enact its RGGI-linked cap-and-trade regulation faced another skirmish at the Supreme Court of Pennsylvania on Wednesday, as both the state and environmental groups appealed the Commonwealth Court's preliminary injunction against the rule that opponents have painted as an illegal tax.

Members of the European Parliament are experiencing what they called 'fatigue' in a week stacked full of green policy scrutiny across several cross-party committees, as borne out in an interim Wednesday ballot that saw lawmakers weaken text for a bill designed to curb industrial air pollution. 

US-based Boom Supersonic, which is developing faster-than-sound passenger aircraft, has signed an agreement with Dimensional Energy to purchase up to 5 million gallons of sustainable aviation fuel (SAF) annually during its flight test programme.

California electricity sector CO2 output sagged over the last two months of the first quarter as hydroelectric generation ramped up following an end to much of the state’s historic drought, recent data showed.

The environmental impacts of electric vehicle batteries range from mining, and energy and water use to the hazards of discarded batteries. These issues can be resolved, but there’s no time to waste. Mehdi Seyedmahmoudian, Associate Professor of Electrical Engineering, Swinburne University of Technology Alex Stojcevski, Dean of School of Science, Computing and Engineering Technologies, Swinburne University of Technology Saad Mekhilef, Distinguished Professor in Electrical Renewable Energy, Swinburne University of Technology Licensed as Creative Commons – attribution, no derivatives.

California and Quebec on Wednesday said they will hold a joint workshop next month to discuss potential amendments to strengthen the jurisdictions’ linked cap-and-trade systems.

A global fintech company on Wednesday announced its latest contribution of $2.35 million towards climate change solutions, with the money collected from an internal carbon tax that it prefers over an offsetting model for its voluntary climate action.

Campaigners slammed Chevron’s use of “junk” carbon credits and “unviable” technologies in a report published on Wednesday, honing in on the oil major's heavy use of units stemming from large hydropower dams while piggybacking on others' criticism. 

A five-year ocean expedition set sail on Wednesday under National Geographic Pristine Seas that will see a team of international experts promote ocean protection in the tropical Pacific, providing video links to underwater landscapes and supporting local conservation efforts.

Using carbon markets to fund the global transition away from coal-fired power generation will require a carbon credit price of at least $10-20, but likely much higher, a conference heard on Wednesday.

A high court judge dismisses a legal challenge over the welfare of fast-growing chickens on farms.

Large investment funds have consistently voted against measures to protect biodiversity at shareholder meetings, a report has found, with proposals supporting nature receiving support of less than 40% of votes cast since 2010 across those analysed.

A paralysed man has been able to walk simply by thinking about it, thanks to electronic brain implants

Exclusive: ‘Ready-to-be-activated’ roadmap adds pressure to Minns government to follow lead of other states in ending controversial practice

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The Perrottet government found native logging could be ended in New South Wales without costing the budget but opposition from the Nationals blocked the proposal.

A plan to end the controversial and loss-making practice of timber extraction from native forests was prepared by the environment department by October 2022.

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The introduction of carbon pricing may be about to rapidly expand across developing countries a conference heard Wednesday, as more and more low-and middle-income economies are now actively implementing or considering taxes and emissions trading schemes.

Participants in emissions trading mechanisms worldwide have moderated their price expectations compared to a year ago but are optimistic that reforms will drive compliance carbon values higher in the future, according to an annual survey published on Wednesday, while voluntary carbon market (VCM) stakeholders are confident that the sector will grow to meet increasing demand.

NSW reveals delays in timing of new renewable zones, and some cost blowouts, raising questions about closure date for Eraring and pace of green energy transition.

The post NSW renewable zones face delays and cost blowouts as questions hang over Eraring appeared first on RenewEconomy.

European carbon prices drifted for a third day on Wednesday, falling below a key technical level as traders awaited exchange data showing market positioning, while natural gas prices declined to near their recent 17-month lows in thin trading.

Most carbon credits and results-based payments hinge on individual emissions mitigation projects, but methodologies exist to extend this model to government-run climate policies, where payments linked to the latter would help accelerate these types of broad-reaching climate actions.

The environment minister of an African nation told an event Wednesday that the best way to utilise carbon markets to save rainforests would be to establish an "integrity index" overseen by a global ratings agency, which could address both sovereign and voluntary carbon needs.