Climate change is a constant natural process.
The “mini ice age” or “little ice age” occurred from about 1300 to 1850. The apparent causes were:
Decreased sun spot and solar flare activity,
Drastically decreased human population from the Plague, and
Increased volcanic activity putting a lot of ash into the atmosphere.
Temperatures now are about where they were just prior to the Little Ice Age.
At this time we have:
Increased volcanic activity, and
We are entering a period of “Solar Minimum” with decreased sun spots and solar flares.
Some scientists are warning of a new Little Ice Age beginning in a few years, but most scientists disagree.
Some population projections predict the Earth’s population damn near doubling from 7 billion to 14 billion people within the next hundred years. Some predict a tapering off of growth and the population stabilizing at around 9 billion people.
The Earth’s magnetic poles reverse about every 25,000 years. This brings an ice age followed by a warming period.
Probably the largest and fastest climate change events on Earth were large asteroid strikes.
Humans have no ability to control sun spots, asteroids, volcanic activity, or the earth’s magnetic field. While it is theoretically possible for humans to practice birth control, birth regulation, euthanasia, eugenics, and warfare to control the growth of the human population, human society is not willing to do so.
Famine and disease are nature’s natural mechanisms to control the population of an ecosystem. However, the rapid development and increasing pace of human technology over the last 200 years has disrupted the ecosystem and prevented nature from limiting the size of the human population through famine and disease.
It’s very arrogant for humans to think that they can control climate change, particularly, without drastically controlling the size of the human population.
Eliminating fossil fuels, without replacing them with not yet available alternatives, would be a form of population control. Without continued mass transport of food, agricultural tools, seed stock, manufactured goods, and medicine, famine and disease would restore the natural balance of Earth’s ecosystem and drastically reduce human population over a few decades. That is a “cure” to the climate change problem that Human society is unwilling to accept.
Talking about eliminating the use of fossil fuels is a waste of time; it will never happen.