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‘Novel Ocean-Crust Mechanism Could Affect World’s Carbon Budget’

By Guest PostNovember 17, 2010Environment, Scienceadam soule, atmosphere, baja peninsula, bathymetry, carbon, climate, CO2, crust, daniel lizarralde, earth, gas, giora proskurowski, greenhouse gases, guaymas basin, gulf of california, hydrothermal vent, jeff s seewald, methane, molten magma, north guaymas, ocean, red sea, s adam soule, seafloor, tectonic plates, undersea ridges, volcanic rocks

The Earth is constantly manufacturing new crust, spewing molten magma up along undersea ridges at the boundaries of tectonic plates. The process is critical to the planet’s metabolism, including the cycle of underwater life and the delicate balance of carbon in the ocean and atmosphere.

Now, scientists at the Woods Hole Oceanographic Institution (WHOI) have observed ocean crust forming in an entirely unexpected way—one that may influence those cycles of life and carbon and, in turn, affect the much-discussed future of the world’s climate.

Working at the Guaymas basin in the Gulf of California, WHOI scientists confirmed what they suspected from brief glimpses of the area during previous missions: The inner Earth is injecting swaths of magma called sills as far as 50 kilometers away from the plate boundary, on each side of the ridge —nearly 10 times farther from such an active ocean ridge than had been observed before. (more…)

Taking Measure of the Greenhouse Effect

By Guest PostOctober 15, 20101 commentEnvironment, Scienceaerosols, andrew lacis, atmosphere, carbon dioxide, climate change, climate models, climate science, clouds, CO2, CO2 emissions, computer simulations, earth, gases, gavin schmidt, goddard institute for space studies, greenhouse effect, greenhouse gases, heat-absorbing components, heat-trapping gas, methane, mining activities, NASA, nitrous oxide, ozone, planet, reto ruedy, ron miller, trace gases, water vapor

WASHINGTON — Scientists have long known that heat-absorbing components of Earth’s atmosphere, such as clouds and certain gases, prevent our planet from being an ice-covered ball. Now a study, for the first time, comprehensively calculates the relative contributions of the components responsible for that heating, known as the greenhouse effect.

Besides clarifying an important aspect of climate science, the study also demonstrates that rising concentrations of one heat-trapping gas — carbon dioxide — leads to much more greenhouse warming than just the heat the gas absorbs directly itself.

Various studies have looked at the contributions of water vapor, CO₂, and other greenhouse gases. But none had systematically estimated the contributions of each of the main players, says climate scientist Gavin Schmidt of NASA Goddard Institute for Space Studies, and lead author of the new research. (more…)

Listen Up: Ocean Acidification Poses Little Threat to Whales’ Hearing

By Guest PostOctober 13, 2010Environmentabsorption, acidic, animals, atmospheric carbon dioxide, boric acid, CO2, decibel, hearing, ilya udovydchenkov, ivan lima, mathematical models, noise levels, ocean, ocean acidification, scott doney, seawater, sound propagation, sound waves, tim duda, whales, whoi, woods hole oceanographic institution

Contrary to some previous, highly publicized, reports, ocean acidification is not likely to worsen the hearing of whales and other animals, according to a Woods Hole Oceanographic Institution (WHOI) scientist who studies sound propagation in the ocean. (more…)

CCS- carbon dioxide capture and storage

By ShamsSeptember 25, 20081 commentEnvironment, ScienceCapture, carbon dioxide, CCS, CO2, Schwarze Pumper. Germany, transport and storage, Vattenfall

Fossil fuels (mainly coal powered power stations) emits about one-third of all carbon dioxide (CO₂) that goes to the atmosphere every day. As it’s a well-known greenhouse gas, therefore many attempts are being made to capture it from the power stations and to store it underground in the geological formations. The aim is therefore towards ‘zero emission’.

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Tag Archives: CO2

‘Novel Ocean-Crust Mechanism Could Affect World’s Carbon Budget’

Taking Measure of the Greenhouse Effect

Listen Up: Ocean Acidification Poses Little Threat to Whales’ Hearing

CCS- carbon dioxide capture and storage