That has turned out to be easier said that done. Even saying it — in writing — has turned out to be quite a challenge.
Government negotiators in Glasgow have been writing and rewriting a paragraph that spells out that the world needs to phase out coal, along with fossil fuel subsidies, but doesn’t set an end date.
Here's a look at the role coal plays in climate change and the energy system, and why it's been so hard to move away from:
WHY THE FOCUS ON COAL?
Of the three fossil fuels — coal, oil and natural gas — coal is the biggest climate villain. It’s responsible for about 20% of all greenhouse gas emissions. It’s also a fuel that is relatively easy to replace: Renewable alternatives to coal-fired power have been available for decades. The burning of coal also has other environmental impacts, including air pollution contributing to smog, acid rain and respiratory illnesses.
WHO IS BURNING THE MOST COAL?
China the world’s most populous country and a manufacturing giant, is by far the world's biggest coal consumer, followed by India and the United States. In 2019 China produced 4,876 TWh of electricity from coal, almost as much as the rest of the world combined, according to the International Energy Agency But adjusted for population size the situation is different: Australia has the highest per capita coal emissions among the Group of 20 biggest economies, followed by South Korea, South Africa, the United States and China, according to an analysis by Ember, a climate and energy think tank.
WHY ARE COUNTRIES STILL BURNING COAL?
The short answer is coal is cheap and plentiful. But even as renewables become more competitive on price, coal isn't that easy to get rid of. Electricity needs are soaring as the world's population and prosperity increase, and renewables simply aren't enough to satisfy that growth in demand. The IEA projects that India will need to add a power system the size of the European Union’s to meet expected growth in electricity demand in the next 20 years. Coal’s role in the power sector has remained relatively stable in the past five decades. IEA statistics show that in 1973 coal’s share of global electricity generation was 38%; in 2019 it was 37%.
WHAT IS NEXT FOR COAL?
Coal’s future looks bleak in the long term regardless of what language governments agree on in Glasgow. It's not just driven by climate concerns: In the U.S., natural gas has been replacing coal for years for economic reasons, though coal has rebounded this year due to a surge in natural gas prices. Since the Paris Agreement in 2015, many countries have set net zero emissions targets, which often require phaseouts of unabated coal, meaning coal-fired plants that aren’t fitted with expensive technology that captures emissions. Austria, Belgium and Sweden have already closed their last coal plants. Britain plans to end coal power by 2024. Announcements made in the run-up to and during the Glasgow conference mean some 370 more coal plants around the world were given a close-by date, according to the Centre for Research on Energy and Clean Air. The U.S. has not made such a pledge yet.
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