this post was submitted on 25 Sep 2024
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Climate - truthful information about climate, related activism and politics.
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Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:
How much each change to the atmosphere has warmed the world:
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It takes less energy to move heat than it does to produce it. A heat pump basically runs an air conditioner backwards, so rather than moving heat from inside a structure to outside, it moves heat from outside to in. With the right units, this works even in cold weather for the same reason a freezer gets warm on the outside - it's moving heat from inside the (freezing) unit out.
Geothermal energy takes this concept a step further by putting the outside unit underground. Underground temperatures are more stable and moderate, so it's easier (more efficient) to expel/collect heat, but also much more involved to install.