The planet used to be warmer 600 years ago. Nature adapted to the lower temperatures. If temperatures rise, it will adapt to the higher temperatures, provided that they even happen.
The projections that claim temperature rises do not consider the inevitability of renewable energy. Renewable prices will drop over time while fossil fuel prices will increase over time. Eventually, fossil fuels will be more expensive and renewables will take over.
Even if the most severe predictions on the internet are true, there is no need to eliminate he use of carbon based fuels. Speeding up the transition to renewable carbon based fuel production would be more than sufficient.