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

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Detailed high-resolution maps of urban change are crucial for studying greenhouse gas emissions, urban heat island effects, population exposure to extreme weather events and air pollution, land-use change dynamics, ecosystem carbon losses, urban sustainability and development pathways.

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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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Carbon cycle. 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. Click to enlarge. Click to enlarge.

Mariner 170
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Perspective: The UN Approval Process for Carbon Offsets

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Since 2005, when major greenhouse-gas emitters among the Kyoto signatories were issued caps on their emissions and permitted to buy credits to meet those caps, there has been more than $300 billion worth of carbon transactions. The approval process for carbon offsets has two goals. THE APPROVAL PROCESS.

Carbon 255
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Climate Expert: Don't Call It Geoengineering

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Spectrum : When you talk about climate interventions, are you including carbon removal and sequestration in that category? We do some work on carbon removal, but that's pretty big space with a lot of investment. In almost all previous projections for climate, tipping events like these were far in the future. Which is good.

Climate 141
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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 102
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Devil in the Details: World Leaders Scramble To Salvage and Shape Copenhagens UNFCCC Climate Summit

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May, 2007 : An international team of researchers concluded that the ability of the Southern Ocean to absorb carbon dioxide had slowed by about 15% per decade since 1981 ( earlier post ), and projected that at the present rate of deterioration, it will have lost two-thirds of its ability to store carbon by 2050.

Climate 236
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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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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). Climate benefits in the near-term (estimated using a GWP-20) are more than three times as large given the rapid benefits that the control of black carbon provides.

Emissions 220