Environment & Energy

That’s the way “Science” works. It’s a constant process of refinement, as more data are gathered, and we learn more about the topic…

There are natural climate cycles of course. A good example is “Ice Ages.” At one point, these weren’t even believed to exist, then they were a mystery. A theory was put forward, and largely rejected, then accepted.

Ice ages, seem to have been triggered in the past few hundred millennia by small variations in the Earth’s orbit around the Sun. (See “Milkanovitch Cycles.”) So, dramatic climate change is normal and cyclical. Right? So, while inconvenient, the current warming is simply part of a natural cycle.

Except, the current warming does not fit into the pattern of Milankovitch Cycles.
https://science.nasa.gov/science-research/earth-science/milankovitch-orbital-cycles-and-their-role-in-earths-climate/
https://climate.nasa.gov/news/2949/why-milankovitch-orbital-cycles-cant-explain-earths-current-warming/

The lesson to be learned here is that even very subtle changes (like small, cyclic changes in Earth’s motion) may kick off dramatic climate changes.

However, we, by burning increasing amounts of “fossil fuels” are kicking off much more rapid climate change than the natural cycle.