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Stakeholder comments on potential updates and revisions to California’s cap-and-trade programme after 2020 have revealed a rift over the levels at which the state should set its various price tiers and how it should address overallocation in the scheme.

The gender gap in science subjects like physics is likely to persist for hundreds of years, study suggests.

The new director-general of the National Trust says the charity needs to reach out to people in urban areas.

North American carbon markets were relatively low-key this week, with east coast prices moving up 3% on a brief surge of buying interest, while WCI prices stagnated amid a lack of interest in outright futures.

Once upon a time, Erin Rhoads had no idea about what it meant to be eco-friendly. After watching one life-changing movie, she now lives a zero waste, plastic-free life.

The Carbon Pricing Leadership Coalition (CPLC) on Thursday named a new co-chair, while the group’s managing body the World Bank announced a high-level forum on carbon pricing and competitiveness amid the release of a report on decarbonising the global power and chemicals sectors.

Invitation to comment on listing assessments for Dasycercus cristicauda, Pseudantechinus mimulus and Mesembriomys macrurus. The public consultation period will be open until 1 June 2018.

Calls for state governments to invest in long-term recycling and sustainable waste solutions
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The body representing Australian councils is urging the federal government to take seriously China’s effective ban on accepting shipments of plastic for recycling, warning it should not ignore potential implications for trade between the two countries.

The Australian Local Government Association is calling on state governments to stop treating hundreds of millions of dollars in landfill levies collected when rubbish was dumped as general revenue, and to instead invest it in long-term recycling and other sustainable waste solutions.

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How can you create public transport in the jungle without polluting it? The isolated Achuar peoples of Ecuador have created an ingenious solution.

How can you create public transport in the jungle without polluting it? The isolated Achuar peoples of Ecuador have created an ingenious solution.

• Latest in a string of investigations into Pruitt’s travel spending
  
• Trips included Disneyland and attendance at sporting games

The Environmental Protection Agency’s inspector general will investigate agency administrator Scott Pruitt’s use of his official security detail on recent personal trips, the latest in a string of congressional, White House and internal investigations into his spending on security and travel.

The investigation comes at the request of Democratic senator Sheldon Whitehouse, he announced on Thursday, a month after he asked Inspector General Arthur Elkins to look into Pruitt’s “unprecedented use” of his taxpayer-funded security detail documented in six weeks of obtained schedules and travel logs.

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We all know that tap water is better than buying bottled water, from an environmental standpoint at least. But what should you drink it out of? A single-use bottle, used multiple times, might be best. Trevor Thornton, Lecturer, School of Life and Environmental Sciences, Deakin University Simon Lockrey, Research Fellow, RMIT University Licensed as Creative Commons – attribution, no derivatives.

People across the UK have been enjoying unusually warm weather, but when can we call it a heatwave?

In an example of human natural selection, Asia's Bajau people have evolved bigger spleens for diving.

EU carbon prices fell to their lowest in a week on Thursday as a breach of a technical support level triggered selling despite a stronger auction.

It’s not just Chris Packham who has helped birdwatching become mainstream, writes Jennifer M Jones

It was encouraging to read your item on birding becoming mainstream (Shortcuts, G2, 19 April). While Chris Packham and the ’watches teams have indeed contributed to this, please do not ascribe this emerging enthusiasm to just one source. Other TV naturalists, including Iolo Williams and Mike Dilger, have done much to encourage and enlighten young people about wildlife issues. Organisations such as the British Trust for Ornithology and RSPB provide excellent opportunities for youngsters to realise that birding can be fun. Local RSPB reserves and groups, Wildlife Trusts and talented individuals are also playing a part. We need these youngsters to care for the future and should be grateful to all those, often working hard behind the scenes, who are enabling this. Many an older birder will express gratitude to one enthusiastic mentor who set them on the road to a lifetime of birdwatching. Long may this continue and not just rely on charismatic TV presenters.
Dr Jennifer M Jones
Liverpool

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A lack of technical infrastructure and guidance from the Ontario government regarding its compliance offset programme is holding up the first investment and project submissions, according to stakeholders.

Nova Scotia’s cap-and-trade programme should include auctions not currently part of the province’s market design, while also providing for more industry protection and linkage opportunities, according to stakeholders.

Scientist Vladimir Uglev has no doubt the agent that poisoned the Skripals was made in Russia.

Scientist Vladimir Uglev has no doubt the agent that poisoned the Skripals was made in Russia.