Here are some of the pledges made so far this week at the UN climate conference, COP26, in Glasgow, Scotland:
More than 100 global leaders pledged to halt and reverse deforestation and land degradation by the end of the decade, a promise underpinned by $US19 billion ($25 billion) in public and private funds to invest in protecting and restoring forests.
The statement was initially backed by leaders of countries including Brazil and Democratic Republic of Congo and Indonesia, which collectively account for 85 per cent of the world’s forests.
But Indonesia’s environment minister later dismissed the plan as “inappropriate and unfair”.
Forests absorb roughly 30 per cent of carbon dioxide emissions, according to the non-profit World Resources Institute.
However, forest degradation and loss has been aggravated by fires that in some places are being fuelled by the conditions of climate change.
Those seeking to conserve forests also have to deal with the massive commercial incentives to fell trees.
Under the far-right government of President Jair Bolsonaro in Brazil, illegal loggers have become emboldened in the Amazon, the world’s largest tropical rainforest.
Indigenous people from the region have sent 40 envoys to the COP26 talks to highlight the need to protect their territories.
About 100 countries have joined an effort led by the United States and the European Union to cut emissions of the climate-warming gas methane by 30 per cent by 2030, compared with 2020 levels.
Methane has a shorter life in the atmosphere than the biggest greenhouse gas CO2, but has around 80 times more planet-warming potency. That means quickly reducing methane emissions from the fossil fuel industry and agriculture could have a big impact in the short term.
But big methane emitters Russia, China and India have not yet signed up, while Australia has rejected the idea of joining.
Net-zero emissions goal
COP26 aims to keep alive a target of capping global warming at 1.5 degrees Celsius (2.7 Fahrenheit) above pre-industrial levels to avert the most dire climate change impacts.
So far, the world is far off track. A UN report released days before the Glasgow talks said current pledges to cut climate-warming emissions put the planet on course for a 2.7C temperature rise this century.
Scientists say the world must halve emissions by 2030, and reach net-zero by 2050, to avert the worst impacts of global warming.
India’s prime minister on Monday said the country, one of the world’s biggest carbon emitters, after China and the United States, aimed to reach net zero by 2070.
For years, finance has been a major sticking point at the UN talks, with rich nations having failed to meet a 2020 deadline set in 2009 to deliver $US100 billion a year in funds to help developing nations both transition away from fossil fuels and prepare for climate impacts.
The pledge stems from global acknowledgement that developed nations have contributed most emissions to the atmosphere, and so bear more responsibility for reversing course.
Last week, the British COP president, Alok Sharma, said the goal would be met only in 2023. But on Tuesday, US climate envoy John Kerry suggested 2022 could be achievable.
Net Zero pledge
Banks, insurers and investors with $US130 trillion at their disposal have pledged to put combating climate change at the centre of their work, and gained support in the form of efforts to put green investing on a firmer footing.
In theory, $US130 trillion is more than enough to finance the world’s transition to a greener economy, but it remains to be seen how many of the trillions will be channelled into action that reduces emissions.
Regulators are working on establishing uniform standards to break through greenwash whereby companies portray their business as climate-friendly when in reality it is not.
End of coal?
Major coal users Indonesia, Poland, Vietnam and others pledged to phase out their use of coal-fired power and stop building plants, a deal COP26 host Britain said put the end of the fuel “in sight”.
The commitment is underpinned by commitments from 20 governments to stop public financing for fossil fuel projects abroad by the end of next year.
However, it excludes some of the world’s most coal-dependent nations, including Australia, China and India.
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