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Study using satellite data finds rate of urban growth much greater than previously thought

Green Car Congress

In a paper in Nature Sustainability , they report that global urban extent has expanded by 9,687?km km 2 per year—a rate four times greater than a previous estimate, suggesting an unprecedented rate of global urbanization. Urban area dynamics during 1985–2015 at the global and continent scales.

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Climate Expert: Don't Call It Geoengineering

Cars That Think

If they meet all the pledges they've made for emission reductions by 2030, global temperature rise will be at 2.4° Many people see such actions as "playing God," and worry about the unintended consequences of meddling with nature on a global scale. Humanity is already reducing global warming. by spewing pollution into the air.

Climate 143
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Marine Ecosystems Capture Carbon Emissions Equal to Near 50% of Emissions of Global Transport; UN Agencies Propose Blue Carbon Fund for Their Support

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The report estimates that carbon emissions equal to half the annual emissions of the global transport sector are being captured and stored by marine ecosystems such as mangroves, salt marshes and seagrasses. Blue carbon sink. Credit: Riccardo Pravettoni, UNEP/GRID-Arendal. Wider Benefits.

Mariner 170
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Gravity Batteries, Green Hydrogen, and a Thorium Reactor for China

Cars That Think

2021 was a big year for energy-related news, what with the ongoing hunt for new forms of energy storage and cleaner if not carbon-free electricity and events and research that spotlighted the weak links in our power grid. Most of the world’s hydrogen comes from deeply polluting methods.

Hydrogen 103
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ICCT report finds global implementation of advanced emissions and fuel-quality regs could cut early deaths from vehicle emissions by 75% in 2030

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Global trends in vehicle-kilometers traveled (VKT) and early deaths from vehicle-related fine particle exposure (2000–2030). Furthermore, this would also deliver a net annual reduction of at least 200 MtCO 2 e from short-lived climate pollutants in 2030 (using GWP-100 values). Chambliss et al. Click to enlarge. —Chambliss et al.

Emissions 220
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Perspective: The UN Approval Process for Carbon Offsets

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The UN Executive Board has no power to order the removal of credits from the market, even in the event of misconduct by a validator or verifier. Renergie is in the process of transferring its proven renewable energy technology worldwide by working closely with developing countries in Latin America, the Caribbean, Asia and Africa.

Carbon 255
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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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ºF) above pre-industrial levels to avoid the most catastrophic effects of climate change, and that global GHG emissions would have to peak around 2020 and then sharply decline by 50% to 85% by the year 2050. AR4 also affirmed that warming would have to be held to no more than 2 ºC to 2.4 ºF) increase. Earlier post.)

Climate 236