Daily temperature records will tumble as sizzling early season heat from a summerlike heat dome sends thermometers skyrocketing into the triple digits in parts of California and the West this week.

The official start of summer is just a few weeks away, but it will feel like July in much of the West as temperatures climb 20 degrees or more above average, the highest temperatures of the year so far for many locations.

Excessive heat warnings are in effect for more than 17 million people in California, Nevada, Utah and Arizona this week. The warnings are the most extreme form of heat alert issued by the National Weather Service and are used when widespread, dangerous heat is expected.

The soaring temperatures are being caused by a heat dome, a large area of high pressure that parks over an area, traps air and heats it with abundant sunshine for days or weeks. The resulting heat becomes more intense the longer a heat dome lasts.

      • ShepherdPie@midwest.social
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        5 months ago

        They survived multiple giant asteroid strikes already. The issue is habitability for humans, but the planet itself is not in danger.

        • Optional@lemmy.world
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          5 months ago

          That’s sort of like saying, yes all human and most animal and plant life will perish in a horrible and entirely preventable human-made catastrophe, but the rocks will be okay.

          I mean, it’s a lot like saying that. Which - yeah, okay.

          • pearsaltchocolatebar@discuss.online
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            5 months ago

            Once humans stop dumping green house gasses into the environment (after we’re dead), nature will correct itself. The earth has been through several mass extinction events, and keeps on recovering.

            Microorganisms will survive, at the very least, so life on the planet will keep on trucking.

          • ShepherdPie@midwest.social
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            5 months ago

            That is what would happen. What won’t happen is “the planet dying” like you claimed above and don’t seem to grasp.

          • then_three_more@lemmy.world
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            5 months ago

            Oh individual species may die, entire eco systems may collapse. But life as a process is extremely resilient.

            Obviously we don’t want that happening.

            • Optional@lemmy.world
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              5 months ago

              I mean, it has survived all the other extinctions so far. It’s easy to be cocky about it.

              We just don’t remember us doing it in so messed up a way before.

          • SerotoninSwells@lemmy.world
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            5 months ago

            Yes, absolutely, you are right. The comments in this thread and elsewhere are that Earth will be fine. Our current trajectory doesn’t bode well for that assertion.

            • pearsaltchocolatebar@discuss.online
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              5 months ago

              Earth will be fine. This isn’t the first time global warming has happened, and life survived that and many other mass extinction events. Most larger animals won’t survive, but enough would for life to keep going.

              Without humans pumping greenhouse gases into the atmosphere, the earth will eventually return to normal. It might take several million years, but that’s nothing considering there’s like 4b years before the sun gets big enough to destroy everything.

            • then_three_more@lemmy.world
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              5 months ago

              Earth will. We and the majority of the current forms of life not so much. The earth has been considerably hotter than now and with considerably more co2. It’s the rate of change that’s the real issue for both us and most life.