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390 Billion Tons of Snow and Ice Melt Each Year As Globe Warms, Study Suggests (usatoday.com)

An anonymous reader quotes a report from USA Today, highlighting the key findings from a new study published in the journal Nature: Thanks to global warming, our planet's glaciers continue to melt away, losing up to 390 billion tons of ice and snow per year, a new study suggests. The largest losses were glaciers in Alaska, followed by the melting ice fields in southern South America and glaciers in the Arctic. Glaciers could almost disappear in some mountain ranges by the end of the century, including those in the U.S. The world's seas have risen about an inch in the past 50 years just due to glacier melt alone, according to the study. Since 1961, the world has lost 10.6 trillion tons of ice and snow, the study reported. Melted, that's enough to cover the lower 48 U.S. states in about 4 feet of water.

2 of 172 comments (clear)

  1. Re:We are still coming out of an ice age by religionofpeas · · Score: 5, Informative

    Nope, the warming from the last ice age peaked about 8000 years ago, and turned into (very slow) cooling, until last century when global warming accelerated.

    https://en.wikipedia.org/wiki/...

  2. Re:We are still coming out of an ice age by Roger+W+Moore · · Score: 5, Insightful

    Oceans rise and fall, old cities are abandoned and new ones are built. Humanity survived Meltwater Pulses 1a and b, and it will survive this one too.

    I don't think there is any doubt that humanity will survive global warming but that is an incredibly low bar to set. Humanity also survives earthquakes, air disasters etc. but that does not mean that we don't try to reduce and/or protect ourselves from them. Improving the safety of planes costs money and increases ticket prices but, overall, is far better than having planes fall out of the sky and people die.

    Global warming is the same. We will survive but there are likely to be significant famines, droughts, floods and huge migrations caused by it if we do not act to reduce the effects. Even ignoring the humanitarian aspect of this, purely economically we are going to be better off developing new technology to reduce and mitigate the effects than we are just dealing with the full impact of a significant temperature increase.