Global warming – just the facts!

  • Tom P.
    Whitehall Wi.
    Posts: 3518
    #1191347

    Quote:


    Alot of pristine coral reefs are disappearing or are gone. Wildfires have been happening for millions of years and those coral reefs made it through so It makes me wonder how come all of a sudden, in the last 50 years, they are dieing out. 1000’s of Volcano eruptions, huge wildfires that burned for months, maybe even years, have come and gone with no harm to the reefs. How come since the industrial revolution things have been changing, not as much when it began, but have been lately, the last 75 too 100 years. I’m convinced somethings happening and I wish I knew.


    How do we know if the Coral reefs didn`t die out 1000 or 10,00 years ago and come back? How do we know they are PRESTINE? May have been in trouble for thousands of years but we don`t know any different. What about back in the 70 and 80`s when all the SCIENTIST were SCREAMING GLOBAL COOLING Ice Age is Coming they were wrong then and I do not believe they have a clue of what is going on. The latest is the earth IS cooling in the last couple of years and they cannot explain it. Is there climate change you bet are we causing it hard to say. When one volcanic eruption puts more pollution in the air then man. since the beginning of man.

    mossydan
    Cedar Rapids, Iowa
    Posts: 7727
    #1191365

    I know what your saying Tom and I ask questions too. I know that coral reefs grow on old reefs where the previous have died and the new grows on them, that’s the life cycle of the coral. Does it happen in a relatively short time or does the coral die off and regrow in different spots making the reefs still look alive. I do know things have changed from what we had 150 years ago and before, does man play a part in it, I think so but I’m not a scientist either.

    I see whats happened in California with their strict emission and air standards. A few of the big cities were so polluted that something had to be done. Strict air standards were put in place back in the 60’s and 70’s and the years after and up too and including now, the trout and salmon have gone back to some streams and are now spawning and reproducing, where before the streams were too polluted. I know that’s a small area compared to the size of the rest of the world but my question is does this also hold true for the rest of the world.

    I know this is a stream pollution issue and the glaciers melting is another and do they have things in common, I don’t know but the air is cleaner and we all can use that. Does carbon dioxide trap and hold heat in the atmosphere, scientists say it does and I’ve read why they think so. It makes sense to me the reasoning behind it but I’m not educated enough to compare it to anything to prove it too myself. One thing is we need strict air standards because we all need clean air. With Chinas industrial revolution developing very fast their cities are so polluted that the air and soil quality that people are living in, the emergency rooms there are constantly treating people with respiratory problems, Is this causing heat in the atmosphere, I don’t know.

    For me the jurys still out on exactly whats causing what but I’m leaning twards man is playing a part in air quality and maybe twards the atmosphere warming. Does pollution cause warming trends, I see evidence where things are cooling in some parts of the world and warming in others. Is global warming causing these differences and shifts, I don’t know. Is man playing a part in its warming, I can see where he would but I’m not forsure yet but I do know hes effecting air quality.

    dave-barber
    St Francis, MN
    Posts: 2100
    #1191379

    Quote:


    Jury is still out for me as to whether human activity has any real impact on climate, or if it is just a trend in this ever-changing earth, but one thing for sure is the glaciers are receding. Look at pictures from the early 1900’s of Glacier National Park and Glacier Bay in Alaska. Greenland is loosing ice and Antarctica has land exposed that has never been seen since it’s discovery. How far this will go, how fast will it continue, when it may reverse who knows? All you can do is hang on and enjoy the ride.


    I have no doubt that humans contribute to the heating AND cooling happening in the world. From the studies, documentaries, etc that I have seen, however, the Earth is and will continue to sustain itself through ever-growing change.

    While the glaciers are undoubtedly melting/shrinking, at the same time, ice is growing in the Antarctic region (south pole).

    Just an expert from one article I saw:

    Quote:


    It’s no secret that the ice sheet is melting in Greenland. Last year, the Arctic ice cap shrunk to a record low, with only 24 percent of the Arctic Ocean covered by ice, a 50 percent drop from its 1979-2000 summer average. At the height of the 2012 summer, Greenland had experienced melting across 90 percent of its surface. For a journalist, it’s an easy story to tell: temperatures climb, the ice shrinks.

    But at the opposite end of the world, in Antarctica, the picture isn’t quite as clear. Satellite images from 2012 showed that Antarctic sea ice reached its highest levels extent on record, evidence skeptics often point to as proof that climate change isn’t happening. And for years, the East Antarctic ice sheet, which covers the majority of the continent, appeared to be stable or perhaps even gaining mass.


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