IPCC

Rising water stress could counteract ‘global greening’, study says

The increased growth rate of plants seen worldwide in response to rising CO2 levels – a phenomenon known as “global greening” – could be stalled by growing water stress, a study finds. Global warming is driving changes to water vapour levels, the research finds, which could, in turn, be affecting the rate of plant photosynthesis – the …

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Africa’s tropical land emitted more CO2 than the US in 2016, satellite data shows

Africa’s tropical land released close to 6bn tonnes of CO2 in 2016, according to data taken by satellites. This means that, if Africa’s tropical regions were a country, it would be the second largest emitter of CO2 in the world – ahead of the US, which currently emits 5.3bn tonnes of CO2 a year. The region’s …

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The U.N. report calls for better farming. Which 2020 candidates have a plan for that?

In a modest sign of Americans’ escalating interest in global warming, several 2020 Democratic presidential contenders have been talking a fairly decent climate policy game. Thanks to the push for a Green New Deal, candidates are throwing around phrases like “decarbonizing the economy.” Spiritual healer Marianne Williamson talked about climate injustice on national television, and …

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IPCC report: Planting trees isn’t enough to save us from the climate crisis

The conventional wisdom is that planting trees will save us from the ever-encroaching threat of climate change. Alas, the conventional wisdom is wrong: It’s going to take a lot more than trees to save the planet, according to a new Intergovernmental Panel on Climate Change report on land use. Forests are basically charismatic megaflora — …

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In-depth Q&A: The IPCC’s special report on climate change and land

This morning in Geneva, the Intergovernmental Panel on Climate Change (IPCC) published its special report on climate change and land. The land provides the “food, feed, fibre, fuel and freshwater” without which human society and its economy “could not exist”, the report says. This provision is under threat from rising global temperatures and “unprecedented” rates …

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Explainer: ‘Desertification’ and the role of climate change

Desertification has been described as the “the greatest environmental challenge of our time” and climate change is making it worse. While the term may bring to mind the windswept sand dunes of the Sahara or the vast salt pans of the Kalahari, it’s an issue that reaches far beyond those living in and around the …

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Guest post: A new approach for understanding the remaining carbon budget

Dr Joeri Rogelj is a lecturer in climate change and the environment at the Grantham Institute at Imperial College London, and Prof Piers Forster is professor of climate physics at the University of Leeds and founding director of the Priestley International Centre for Climate.  The concept of a “carbon budget” has proved to be both …

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Bonn climate talks: Key outcomes from the June 2019 UN climate conference

A record-breaking European heatwave provided a fitting backdrop to the latest round of UN climate change talks, in which delegates from around the world descended on Bonn for a two-week diplomatic effort. The “intersessional” meeting takes place every year in the German city, midway between the annual conferences of the parties (COPs) which fall towards …

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