références en Anglais

Identifying the socio-economic drivers behind greenhouse gas emissions is crucial to design mitigation policies. Existing studies predominantly analyze short-term CO2 emissions from fossil fuels, neglecting long-term trends and other GHGs. We examine the drivers of all greenhouse gas emissions between 1820–2050 globally and regionally. The Industrial Revolution triggered sustained emission growth worldwide—initially through fossil fuel use in industrialized economies but also as a result of agricultural expansion and deforestation. Globally, technological innovation and energy mix changes prevented 31 (17–42) Gt CO2e emissions over two centuries. Yet these gains were dwarfed by 81 (64–97) Gt CO2e resulting from economic expansion, with regional drivers diverging sharply: population growth dominated in Latin America and Sub-Saharan Africa, while rising affluence was the main driver of emissions elsewhere. Meeting climate targets now requires the carbon intensity of GDP to decline 3 times faster than the global

Repeatedly mass infecting kids with COVID is not a public health strategy. It's a fast pass to declining population health

Melting of ice is slowing planet’s rotation and could disrupt internet traffic, financial transactions and GPS

In a previous post, I defined this graph as “the most amazing graph of the 21st century.” It shows how the US oil production restarted growing in 2010, picking up speed and surpassing the historical record of the “Hubbert Peak,” which took place in 1970. It overcame the dip caused by the Covid pandemic and, two years after my first post on this subject, it keeps growing.

California has sued five of the largest oil and gas companies in the world, alleging that they engaged in a 'decades-long campaign of deception' about climate change and the risks posed by fossil fuels.

Permafrost and glaciers in the high Arctic form an impermeable ‘cryospheric cap’ that traps a large reservoir of subsurface methane, preventing it from reaching the atmosphere. Cryospheric vulnerability to climate warming is making releases of this methane possible. On Svalbard, where air temperatures are rising more than two times faster than the average for the Arctic, glaciers are retreating and leaving behind exposed forefields that enable rapid methane escape. Here we document how methane-rich groundwater springs have formed in recently revealed forefields of 78 land-terminating glaciers across central Svalbard, bringing deep-seated methane gas to the surface. Waters collected from these springs during February–May of 2021 and 2022 are supersaturated with methane up to 600,000 times greater than atmospheric equilibration. Spatial sampling reveals a geological dependency on the extent of methane supersaturation, with isotopic evidence of a thermogenic source. We estimate annual methane emissions from prog

Longtermism is a perspective that there is a moral reason to consider how the actions and decisions we take today affect the lives of huge numbers of future people.

At the Hay Festival, BBC Future assembled a panel of thinkers to discuss one of the most pressing questions of our time: how to tackle society’s habit of “short-termism”.

Behind the headlines about billionaire jaunts into space, there's a deeper motivation – the belief that spreading into the cosmos will save humanity's future. How did this idea emerge?

As those most responsible for the crisis recede into history, our energy is better spent responding to the world we have created

A report released Wednesday warns that rising lake levels, strong wind gusts and high waves are inching closer to flooding hazardous spots in northern Illinois, including coal, nuclear and Superfund sites.

Long before the current political divide over climate change, and even before the U.S. Civil War (1861-1865), an American scientist named Eunice Foote documented the underlying cause of today’s climate change crisis. The year was 1856. Foote’s brief scientific paper was the first to describe the extraordinary power of carbon dioxide gas to absorb heat – the driving force of global warming. Carbon dioxide is an odorless, tasteless, transparent gas that forms when people burn fuels, including coal, oil, gasoline and wood.

What else is new? Hotspots are getting hotter. The major hotspot in April stretched from Iraq to India and Pakistan, and toward the northeast through Russia (Fig. 1). Temperature exceeded 45°C (113°F) in late April in at least nine Indian cities,[1] on its way to 50°C (122°F) in Pakistan in May,[2] where a laborer says “It’s like fire burning all around” and a meteorologist describing growing heatwaves since 2015 says “The intensity is increasing, and the duration is increasing, and the frequency is increasing.” Halfway around the world, Canada and north-central United States were cooler than their long-term average, but people in British Columbia and northwest United States remember being under their own record-breaking hotspot last summer.

It took me a while but I finally digested the 107 pages of Chapter 5: Demand, services and social aspects of mitigation in the last IPCC report on Mitigation of climate change. This chapter is worth the read if only because it’s the first one fully dedicated to demand-side strategies. What I find remarkable is its conceptual width, including a few ideas that are usually considered too radical in these kind of venues. But just like the rest of the report, it is long and – as academic writing too often is – full of abstract jargon and somnolent prose. What I want to do in this article is to explain why Chapter 5 is more radical (in the good sense of the term) that you may think.

On Sunday, Vladimir Putin ordered his nuclear deterrent forces to be placed on a “special regime of combat duty”. The Russian defence minister, Sergei Shoigu, has now clarified what this meant: the increased manpower devoted to Russia’s strategic nuclear triad: land-based strategic nuclear rocket forces, sea-based nuclear deterrents in the northern and Pacific fleets and its fleet of long-range strategic bomber aircraft that can carry nuclear weapons.

In Paris, all governments solemnly promised to come to COP26 with more ambitious 2030 commitments to close the massive 2030 emissions gap that was already evident in 2015. Three years later the IPCC Special Report on 1.5°C reinforced the scientific imperative, and earlier this year it called a climate “code red.” Now, at the midpoint of Glasgow, it is clear there is a massive credibility, action and commitment gap that casts a long and dark shadow of doubt over the net zero goals put forward by more than 140 countries, covering 90% of global emissions.

Don't you stumble, sometimes, into something that seems to make a lot of sense, but you can't say exactly why? For a long time, I had in mind the idea that when things start going bad, they tend to go bad fast. We might call this tendency the "Seneca effect" or the "Seneca cliff," from Lucius Annaeus Seneca who wrote that "increases are of sluggish growth, but the way to ruin is rapid."

The Energy Charter Treaty is a little-known investment protection treaty. It allows foreign investors to claim billions in compensation from the signatory states before international arbitration tribunals if the companies feel treated unfairly by the states energy or climate policies. This procedure has numerous problems: The treaty is one-sided, because only companies can sue states. It is extremely vaguely worded and thus a gateway for investors to sue. The arbitration courts meet in secret like shadow courts. In some cases, it is not even made public that there are proceedings at all.

Large-scale environmental destruction affects the future of all life on our planet. Criminalising it would finally hold decision-makers to account

Failing, heavily subsidized private oil companies enjoy the profits of oil extraction while the rest of us pay in tax dollars, human rights abuses, and an unlivable climate. Oil and gas companies are a political structure: they possess private, authoritarian dominion over the pace and volume of oil and gas production, and thus of important determinants of global emissions. These emissions and their consequences do not respect any sort of public/private distinction, nor borders, nor the rights to clean air or clean water.