• GreenM@lemmy.world
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    1 year ago

    One thing I’m unsure of is whether warming is so bad because a) planet was warmer multiple time in prehistory and it led to abidance of life b) we live in interglacial period and if that perid ends we are going to fight much worse calamity and need much more energy. Even getting out could become life threatening.

    On the other hand Venus situation is also not ideal.

    • ThenThreeMore@startrek.website
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      1 year ago

      Speed of change.

      Natural climate changes happen over tens of thousands to hundreds of thousands of years

      Not tens to hundreds of years.

      • GreenM@lemmy.world
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        1 year ago

        Not always, check Sahara for instance. Went from grass lands with biggest lake on planet to dust dry place within hundreds of years as Egyptians who built pyramids still lived in period before total desrtification. That affected whole world climate BTW.

          • GreenM@lemmy.world
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            1 year ago

            Not in Sahara case. Or to be precise it’s cycle of combinations of titling earth axe, changing orbit shape and maybe some other things like solar cycles that all affects global climate all over the planet manifesting among else in Sahara as cycles of desert <> grassland depending on which phase it is ATM.
            That solar cycle itself change global avg temperature every few years.
            Also around middle age there was “small” ice age. You see, climate seem stable but it isn’t even in horizont of hundreds of years. It will change regardless of humans. Point is whether humans help it into good/ neutral / bad phase and how long it takes.

            My other point is that eachtime earth was warmer few degrees than today, life boomed.

    • madejackson@lemmy.world
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      1 year ago

      disclaimer: opinion here ofc deciding if it is bad depends very much on the viewpoint. But yourself as a human should probably view it from the viewpoint of mankind in general. And then, yes, it is undoubtably bad. It is going to cost humankind an unimaginable amount of money and it’ll increase inequality and unfairness in unimaginable amounts. That’s also why there are so many people denying or not believing it. A lot of humans are uninformed or unable to grasp the issue on a logical level simply because of the scale of the issue.

      • GreenM@lemmy.world
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        1 year ago

        Is it though? There are scientists who claim golf stream will stop but also that it won’t. There are scientists claiming that warmer temperature will cause horrible food shortages etc but others who say it will also create better enviroment for plants (warm + CO2) which among others are main source of nutrition for humans and animals consumed by humans. It might even extend tropical life rich waters. Human understanding came far but it’s still lacking. I’m all for nature preservertion but is building huge wind plants in middle of mountains forest gonna safe us or have any effect as oppose to negatively affecting nature?
        We need reason and not sensationism to drive these changes, IMHO.

        • madejackson@lemmy.world
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          9 months ago

          I didn’t get notification but i cannot let stand your statement. You’re just wrong. Pretty much all of scientists agree that it is unimaginably worse than good. Trying to argue about that is just yourself coping with denying the issue at hand.