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Tópico: Aquecimento global?

  1. #721
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    A truly enormous iceberg just broke loose from Antarctica
    Probably natural, and sea level consequences are minimal. But it's still impressive.

    Concluding a months-long deathwatch, one of the largest icebergs ever seen finally separated from Antarctica’s Larsen C Ice Shelf sometime in the last couple days. The 5,800-square-kilometer iceberg contains over a trillion tons of ice. For years, researchers have been keeping an eye on a growing rift in the floating ice shelf that raced toward completion in recent months.

    https://arstechnica.com/science/2017...om-antarctica/
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  2. #722
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    Cracks are still spreading where that massive Antarctic iceberg broke free
    Satellites are giving scientists an unprecedented view of this real-world experiment

    https://www.theverge.com/2017/8/2/16...climate-change
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  3. #723
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    O que será que vai acontecer..hoje esteve com a humidade 35 graus. Fdx. 35. Geralmente são 26 29/30 com a humidade. Impressionante.

  4. #724
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    Here’s how climate change is already affecting the US
    According to a new government report
    ...
    Here are some instances of how Americans are already witnessing climate change firsthand, according to the report:

    - It’s getting hotter. Average annual temperatures in the US have increased by 1.8 degrees Fahrenheit between 1901 and 2016.
    - Cities are bearing the brunt. Urban areas are experiencing an increase in daytime temperatures of up to 7 degrees Fahrenheit, as well as an increase in nighttime temperatures of up to 4.5 degrees Fahrenheit. That’s especially true for humid regions in the Eastern United States.
    - There is more extreme heat. Cold waves have become less frequent since the early 1900s, while heat waves have become more frequent since the 1960s. Heat waves can destroy crops, cause power outages, and they are dangerous for your health.
    - It’s getting rainier. Average annual rainfall has increased by about 4 percent since 1901 in the US. While the Northern and Southern Plains, the Midwest, and the Northeast are getting wetter, much of the West, Southwest, and Southeast are getting drier.
    - There’s more extreme rain. Heavy rainfall events have become more frequent and more intense since 1901 in most parts of the US, and that’s particularly true for the Northeastern US. Heavy rain can cause deadly flash floods, and carry more nutrient runoff to our lakes and oceans, affecting water quality and shutting down fisheries.
    - Tornadoes have become more variable. Particularly over the 2000s, there’s been a decrease in the number of days with tornadoes, but an increase in the number of tornadoes on those days.
    - The trees are burning. Large forest fires have become more common in the Western US and Alaska since the early 1980s.
    - Sea levels are rising. Average sea levels around the world have risen by about seven to eight inches since the beginning of the 20th century, with about three of those inches occurring since 1993. That has caused the number of tidal floods in several US coastal cities to increase five to tenfold since the 1960s.
    - Alaska is hit hard. Temperatures in Alaska (and the Arctic) have risen twice as fast as the global average in the past 50 years; permafrost is thawing; and glaciers have lost ice. Each year since 1984 has seen a lower average mass of ice in Alaska’s glaciers than the previous years.
    ...
    https://www.theverge.com/2017/8/9/16...2-donald-trump
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  5. #725
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    Harvey is part of a pattern of extreme weather scientists saw coming. They're still shocked.
    “We still get overwhelmed because extreme weather is by its nature peculiar.”
    ...
    Climate scientists have confirmed that climate change made Harvey a worse storm. Because of long-term warming trends, the ocean is warmer, creating more energy for a hurricane to tap. The atmosphere is warmer too, sending more water vapor into the air that can then be pulled back down by a hurricane as rain. Adam Sobel, an atmospheric scientist who directs Columbia University’s Initiative on Extreme Weather and Climate, estimates that 5 to 10 percent of the rainfall was due to global warming (more conservative than the 30 percent estimate from Kevin Trenberth, a senior scientist at the US National Center for Atmospheric Research).
    ...
    https://www.vox.com/science-and-heal...eather-science
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  6. #726
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    Nice going trump

  7. #727
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    We’re building roads to withstand last century’s climate
    Asphalt in use tolerates the temperature extremes of a period that ended in 1995.

    https://arstechnica.com/science/2017...turys-climate/
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  8. #728
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    Warm waters tripled the amount of ice lost in these Antarctic glaciers — and that's bad for sea level rise
    The four glaciers are grounded, they’re not floating

    Between 2008 and 2012, warmer than usual waters caused four glaciers in Western Antarctica to flow toward the sea faster than any other glacier on the continent. The glaciers also lost more than three times the amount of ice than usual, according to new research. All these changes are bad news for Antarctica — and us. As grounded glaciers melt, sea levels around the world rise.

    https://www.theverge.com/2017/9/26/1...warming-oceans
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  9. #729
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    Ophelia became a major hurricane where no storm had before
    ...
    "Ophelia is breaking new ground for a major hurricane," National Hurricane Center scientist Eric Blake wrote on Twitter. "Typically those waters much too cool for anything this strong." He also added, "I really can’t believe I’m seeing a major just south of the Azores." Seas near where Ophelia intensified Saturday were 1-2° C degrees above normal.
    ...
    https://arstechnica.com/science/2017...ally-too-cold/
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  10. #730
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    Tivemos sorte pois só apanhámos uma frente fria..mas a irlanda não

  11. #731
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    New York City’s future storm risk dominated by sea level rise
    New analysis says hurricanes will mostly pass offshore as oceans keep rising.

    https://arstechnica.com/science/2017...ea-level-rise/
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  12. #732
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    US Government Accountability Office argues for acting on climate change
    New report endorses a coordinated federal response to climate change.

    https://arstechnica.com/science/2017...limate-change/
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  13. #733
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    US government climate report: Climate change is real and our fault
    Report appears to have cleared federal review despite censorship fears.



    https://arstechnica.com/science/2017...and-our-fault/
    The three-degree world: the cities that will be drowned by global warming
    The UN is warning that we are now on course for 3C of global warming. This will ultimately redraw the map of the world

    https://www.theguardian.com/cities/n...global-warming
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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  14. #734
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    NYC Installs Massive, Apocalyptic Floodgates in Car Tunnels To Fend Off The Next Big Storm
    That, and zombies.

    http://www.thedrive.com/news/15909/n...next-big-storm
    Lá em cima há planícies sem fim; Há estrelas que parecem correr; Há o Sol e há dia a nascer;
    E nós aqui sem parar numa Terra a girar…


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