We're on track to true climate catastrophe's. This is what we are facing!
What is the problem?
Global mean surface temperatures reached 1.2°C above the pre-industrial average in 2020, and the Intergovernmental Panel on Climate Change warned in its recent report that Earth could hit 1.5°C in as little as a decade. The 0.3°C separating these two temperatures make a world of difference. Scientists believe that stabilising our warming world’s temperature at 1.5°C could help avoid the most serious effects of climate change.
What do we have to do?
Fossil fuels such as coal, oil and natural gas are the source of just over 80% of the world’s energy. Burning them accounts for 89% of human-derived CO₂ emissions. To avert catastrophic warming, the global community must rapidly reduce how much of these fuels it extracts and burns. Our new paper, published in Nature, revealed just how tight the world’s remaining carbon budget is likely to be.
In order to hold global warming at 1.5°C, we found that nearly 60% of global oil and fossil gas reserves will need to remain in the ground in 2050. Almost all of the world’s coal – 90% – will need to be spared from factory and power plant furnaces. Our analysis also showed that global oil and gas production must peak immediately and fall by 3% each year until mid-century.
Fossil fuel rationing
We estimated how much fossil fuel production in each region must fall and how fast based on a global energy system model. We allocated the remaining shares of fossil fuel production allowed within the budget based on the costs and carbon intensity of producing different oil and gas assets, and how cheap low and zero-carbon technologies are in different parts of the world.
Our analysis showed that total fossil fuel production is limited by a global carbon budget. Production growing in one region of the world will require a decrease in another to keep the global trajectory pointing downwards. A mechanism such as the Global Fossil Fuel Registry – a public database of all known reserves – could provide the necessary transparency for an international effort, with the cooperation of governments and fossil fuel producers.
The US and Russia sit on half of the world’s coal but must leave 97% of it in the ground. Australia, which recently pledged to keep producing and exporting coal beyond 2030, would need to keep 95% of its reserves underground. Oil-producing states in the Middle East must not extract around two-thirds of their reserves, while most of Canada’s tar sand oil must not be burned, along with all of the fossil fuel buried beneath the Arctic.
Our analysis suggests that many countries will need to move out of fossil fuel production relatively quickly, which raises concerns about how the transition can be managed fairly. Countries such as Iraq and Angola have a high dependency on fossil fuels for government revenues. They will need support to diversify their economies in a managed way – including financial and technological assistance to develop new low-carbon industries – and to decarbonise domestically to reduce their own reliance on fossil fuels.
If you want to read the whole article, here is the link:
Climate change: ditch 90% of world’s coal and 60% of oil and gas to limit warming to 1.5°C – experts (theconversation.com)
