2 thoughts on “Antarctica from space

  1. Cassandra says:

    12/216: Operation IceBridge, NASA’s airborne survey of changes in polar ice, has discovered a rift in Antarctica’s Larsen C Ice Shelf that is about 70 miles long, more than 300 feet wide and about a third of a mile deep. The crack completely cuts through the ice shelf but it does not go all the way across it – once it does, it will produce an iceberg roughly the size of the state of Delaware. https://www.nasa.gov/image-feature/rift-in-antarcticas-larsen-c-ice-shelf
    For more info re: Operation IceBridge see “NASA Nears Finish Line of Annual Study of Changing Antarctic Ice” @ https://www.nasa.gov/feature/goddard/2016/nasa-nears-finish-line-of-annual-study-of-changing-antarctic-ice In other news: “Global Warming Research in Danger as Trump Appoints Climate Skeptic to NASA Team” https://theintercept.com/2016/12/01/global-warming-research-in-danger-as-trump-appoints-climate-skeptic-to-nasa-team/

  2. Bellwether says:

    Following Earth’s last ice age, which peaked 20,000 years ago, the Antarctic warmed between two and three times the average temperature increase worldwide, according to a new study by a team of American geophysicists. The disparity highlights the fact that the poles, both the Arctic in the north and the Antarctic in the south, amplify the effects of a changing climate, whether it gets warmer or cooler. The calculations in this study are in line with estimates from most climate models, proving that these models do a good job of estimating past climatic conditions and, very likely, future conditions in an era of climate change and global warming. {However} The situation today, with global warming driven primarily by human emissions of carbon dioxide from burning fossil fuels, is different from natural cycles, according to the study’s first author. The ability of the oceans to take up carbon dioxide cannot keep up with the rising levels of greenhouse gases in the atmosphere, which means carbon dioxide and global temperatures will continue to increase unless humans cut their carbon dioxide emissions. https://www.eurekalert.org/pub_releases/2016-12/uoc–dlw120516.php

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