Climate breakdown is being caused by carbon emissions. And the biggest source of global carbon emissions is burning fossil fuels for energy, which includes heat, electricity and transport. This is because burning fossil fuels (like coal, oil and gas) releases carbon dioxide that has been locked up deep underground for hundreds of millions of years.

To cut carbon emissions and tackle the climate crisis, the world must quickly transition to zero carbon, renewable energy. ‘Renewable’ means that the energy source isn’t depleted when it is used, and includes wind, solar, hydro and sustainably managed bioenergy.