As the UN's annual climate summit gets underway in Dubai, United Arab Emirates, one underlying question is set to top the agenda: can the world finally agree to ditch fossil fuels? Down to Earth takes a closer look.
No climate summit has ever set an end date for the dirty fuels at the root of the climate crisis. And yet, coal, oil and gas are by far the largest contributors to climate change, accounting for over 75 percent of global greenhouse gas emissions.
