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Renewable Identification Numbers (RINs) prices under the US Renewable Fuels Standard (RFS) slid back to near single digits Monday as reports suggested President Donald Trump will announce year-round sales of 15% ethanol blends (E15) at a Tuesday rally.

Mary Fawcett and Geoff Walmsley look for and offer solutions to the problem of recycling the bag that the newspaper’s Saturday supplements come in

Having just read “Crunch time for forests and plastic pollution” (Letters, 6 October), I wonder if anyone can help me? For about a year I’ve been collecting the plastic film wrappers from the Guardian’s Weekend magazine and other Saturday sections. I’ve now filled a very large sack. Does anyone know of a firm that will recycle this material? Our local authority waste collection does not.
Mary Fawcett
Bath

• My wife is a Women’s Institute member and we were impressed to note that its magazine, WI Life, has switched from polythene wrapping to a compostable potato-starch alternative. It would be good to see the Guardian burnish its green credentials and adopt the same method for the Weekend magazine.
Geoff Walmsley
Wirral, Cheshire

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Even half degree of extra warming will affect hundreds of millions of people, decimate corals and intensify heat extremes, report shows

• Full report: We have 12 years to limit climate change catastrophe, warns UN

World leaders have been told they have moral obligation to ramp up their action on the climate crisis in the wake of a new UN report that shows even half a degree of extra warming will affect hundreds of millions of people, decimate corals and intensify heat extremes.

But the muted response by Britain, Australia and other governments highlights the immense political challenges facing adoption of pathways to the relatively safe limit of 1.5C above pre-industrial temperatures outlined on Monday by the Intergovernmental Panel on Climate Change (IPCC).

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“I’d like to taste the freedom that nature holds so high, to wander round a global dream before I have to die.” That was the prophetic verse of a 17-year-old Richard Northcote, who ultimately lived in many countries and travelled extensively. His dream was the creation of a sustainable world.

As chief sustainability officer for Covestro, a manufacturer of high-tech polymer materials, my father, Richard, who has died suddenly aged 58, found an organisation that shared his passion. Thanks to his enthusiastic advocacy, Covestro embraced the UN sustainable development goals, helping to launch innovative products and technologies that reduce environmental impact.

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IPCC authors suggest there is high agreement that injection of chemicals into stratosphere could help limit rises

• Full report: We have 12 years to limit climate change catastrophe, warns UN
  

The world may increasingly look to geoengineering in the wake of the latest UN climate report, which says it could be adopted as a temporary “remedial measure” if the world heads towards dangerous levels of warming.

The authors of the new 1.5C study by the Intergovernmental Panel on Climate Change say there is high agreement that the injection of millions of tonnes of sulphur dioxide or nitrous oxide into the stratosphere could help limit temperature rises to the most ambitious target of the Paris accord.

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Captive-bred birds spend most of their lives under close scrutiny. Until suddenly, they are fending for themselves in the wild.

After growing up in captivity, three young birds take flight in the wild.

After growing up in captivity, three young birds take their first free flight.

2016 Kigali amendment on hydrofluorocarbons could reduce warming by a small but crucial 0.5C

From the beginning of next year, a new global pact will take effect that could have a profound impact on climate change, cutting harmful greenhouse gas emissions by amounts that could help stave off some of the worst impacts predicted by the IPCC.

This little-noticed treaty has nothing to do with the Paris accord, the United Nations Framework Convention on Climate Change (UNFCCC) negotiations that have dragged on since 1992, or energy sector emissions, which have resumed their rise.

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The Hubble Space Telescope is operating with only essential functions after it lost one of three gyroscopes needed to point the spacecraft.

William Nordhaus and Paul Romer win prize for research on how climate and technology affect the economy.

The UN’s climate change report shows every fraction of a degree matters but world governments now have the chance to deliver a safer future

The new 1.5C report by the Intergovernmental Panel on Climate Change is a sophisticated intelligence briefing on the fate of our planet. Its message is relevant to every human being on Earth.

Based on more than 6,000 scientific studies, the report was compiled by more than 80 of the world’s top climate scientists from nearly 40 countries, and calibrates 40,000 peer-review comments. It is a robust and outstanding example of international cooperation, and an extraordinary source of shared intelligence.

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New Zealand carbon allowances on Monday hit new all-time highs, although in small trades reflecting the shortage of available supply in the market.

The most important messages from the landmark report on global warming.

When Japan-headquartered oil firm Inpex launches the two tranches of its Ichthys gas field this year and next, Australia’s Northern Territory will see its annual GHG emissions rise by over 40%, putting the nation further off track to meet its Paris Agreement obligations.

Vietnam has become among the first countries to signal it will adjust its Paris pledge at December’s climate talks, a change that would enable the rapidly-developing country to emit tens of millions of tonnes more GHGs by 2030 than previously pledged.

EIA is seeking a full-time Policy Analyst for its Climate Campaign, which centers on an award winning efforts to rid the world of the worst climate super-pollutants, including hydroflourocarbons (HFCs) which are thousands of times more destructive than CO2.

If we’re already doomed to disastrous climate change, then there’s no reason to cut carbon pollution, argues the Trump administration

Several years ago, I wrote about the five stages of climate denial:

In 2013 @dana1981 wrote about the 5 stages of #climatechange denial.

Stage 1: Deny the Problem Exists
Stage 2: Deny We're the Cause
Stage 3: Deny It's a Problem
Stage 4: Deny We can Solve It
Stage 5: It's too Late

Look where the Trump Administration is.https://t.co/FRQGZ8gQ4r

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Uniper is looking for an entry-level advisor to help safeguard the company’s interests in energy, environment and climate policy within the political decision-making process in Brussels.

The world must cut CO2 emissions 45% below 2010 levels by 2030 and achieve net zero emissions by mid-century if it is to stand a chance of limiting global warming to 1.5C, the Intergovernmental Panel on Climate Change (IPCC) said Monday, in a report highlighting the far-reaching differences in impact between 1.5C and 2C of warming.