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NASA: Is a Sleeping Climate Giant Stirri...

Permafrost Coverage in Northern Hemisphere

NASA: Is a Sleeping Climate Giant Stirring in the Arctic? Permafrost zones occupy nearly a quarter of the exposed land area of the Northern Hemisphere. NASA’s Carbon in Arctic Reservoirs Vulnerability Experiment (CARVE) is probing deep into the frozen lands above the Arctic Circle in Alaska to measure emissions of the greenhouse gases carbon dioxide […]

Is Ash Falling? Online Reporting of Volc...

Pavlof Volcano - Photo by Brandon Wilson

The Alaska Volcano Observatory (AVO) has launched an online ash fall data collection system. Titled Is Ash Falling?, the site offers citizen scientists a chance to help in assessment of volcanic eruption plumes. Adding real time field observations can help delineate the character and size of an eruption plume. Information is also passed to the […]