As I wrote about oil:
"BP's annual report on proved global oil reserves says that as of the end of 2013, Earth has nearly 1.688 trillion barrels of crude, which will last 53.3 years at current rates of extraction."
The world has 53.3 years left to find an alternative to oil before current proved reserves run dry, according to BP. Of course, nations are finding new oil – meaning that number is rising – but new extraction methods are costly and can pose environmental threats.
www.csmonitor.com
"Current rates of extraction" wrongly assumes that the oil consumption won't increase in the future. Oil extraction, like any other nonrenewable resource follows the logistic function:
'Super funds and investors with $34tn urge leaders to speed up climate action': https://www.theguardian.com/environment/2019/jun/26/super-funds-and-investors-with-34tn-urge-leaders-to-speed-up-climate-action Superannuation funds and investors representing US$34tn in assets – nearly half of the...
forums.frontier.co.uk
Fusion is (like always) still 20-30 years into the future. Also that doesn't solve the diesel problem in agriculture. You need batteries. A tractor can't drag a cable behind it.
If we stop having livestock, we will lose the manure, which currently is the only way we recycle phosphorus. Also, the soils used for pasture are used for that instead of growing wheat etc. because those soils are low on nutrients. We still add fertilizer to pasture soil, but far from the amounts you need to add to a wheat field without manure. Intensive farming enabled the population to grow, and the growing population demanded more food leading to even more intensive farming, in a positive feedback loop.
And you are also wrong about me not having kids. My own dad says: "F-word our offspring". He's a jerk, but he's my dad. I have grown up to think differently about my daughter.
Edit: Regarding the Sun, the normal solar cycle lasts 11 years, and the eccentricity is normally done in a year. I agree that the long term change of Earth's orbit does influence the climate (over 100.000 years), but the main reason the Earth is getting warmer is human activity, mostly by generating CO2 by burning fossil fuels.