• partial_accumen@lemmy.world
    link
    fedilink
    arrow-up
    1
    ·
    edit-2
    2 days ago

    I’ve yet to have anyone adequately explain how it’s not going to rain in the future…

    Its a pretty well covered topic if you’re interested in an answer. Here’s a TLDR version:

    • increase in atmospheric temperature means more water is held in the air as vapor instead of liquid water (and its not as equally distributed around the Earth then) The atmosphere holds 7% more water vapor for every degree Celsius.
    • the disruption in the water cycle from lack of snow pack to changes in global air currents means it doesn’t rain nearly as often, but when it does its a monsoon. This means most of the water runs off because it can’t be stored, and ground soil, baked by drought the rest of the time, doesn’t absorb water either.
    • at the far extreme, look at the planet Venus. Rising atmospheric temperatures boiled all water away to steam. So, yes, there is water on Venus, but not liquid or solid.

    source

    source2

    source3

    • Donjuanme@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      2 hours ago

      An increase in temperature also increases the evaporation rate of water. rain storms will be more intense, but just because the atmosphere holds more water doesn’t mean it won’t also be releasing more water.

      Venus isn’t at all comparable to Earth… That’s a literal crazy comparison. If Earth received 30% more solar radiation, didn’t have ocean heat sinks (I most worry about global warming because of the cccd rising, not about “where are we going to get water from”, between using fossil fuels for combustion to make energy, and the elimination of calcium carbonate life forms in the ocean, we’re going to asphyxiate long before we dehydrate, or over hydrate, or whatever we’re worried about from the water)

      More extreme water patterns doesn’t mean less drinking water.

      Less ocean bio activity means less breathable air.