According to the United Nations Intergovernmental Panel for Climate Change(UN-IPCC) the Earth may not heat up by more than 2° C on average.
Stefan Rahmstorf(Ocean scientist) says that all human CO2 emission have to be reduced to 0% by 2060 to stay under 2° C.
This means we may not burn more than 1 drop of oil, gas, or other carbon fuels.
Without fuel cars, tractors, boats, and airplanes no longer work.
Without transportation food and drink can no longer be transported on a large scale and more than half of humanity will die from food shortages.
The International Energy Agency(IEA) says that human energy deman will rise by 100% by 2060.
According to the United Nations the global human population will be 10 billion by 2055.
According to the United Nation the Earth can only contain 4 to 6 billion people to give everyone a healthy meal.
The Earth now contains a human population of 7.5 billion.
If all people on Earth live a Western lifestyle with a car, a house, a tv, a smartphone, and so on. We need 3 Earths to mine all resources and extract all the oil, but we only have 1 Earth.
Today there are approx. 750 million cars on Earth. There are not enough minerals on Earth to replace all these fossil fuel cars by electric vehicles. The batteries for electric cars and smartphones use Cobalt, Lithium, and Graphite
There are known Cobalt deposits in Afghanistan, Congo, China, and North Korea. The mining of Cobalt is poisonous en pollutes the environment where it is mined. Causing local water to be undrinkable. Because of this plants, animals, and humans die of diseases.
People who work in Cobalt mines have an average lifespan of 30 years.
There are Lithum mines in Bolivia, Chile, and Argentina. Mining Lithium consumes a lot of water. This causes farms in around the mindes to have less access to water. Which reduces vegetable and fruit production. Groundwater can also become polluted destroying entire crops, which in turn reduces global availablity of some fruits.