|World’s young face $535 trillion bill for climate.|
|One of the world’s most famous climate scientists has just calculated the financial burden that tomorrow’s young citizens will face to keep the globe at a habitable temperature and contain global warming and climate change – a $535 trillion bill. Climate News Network, United Kingdom.|
Rapid emissions reductions would keep CO2 removal and costs in check: 20% below countries’ Paris pledgesLeave a Comment
- Emissions reduction efforts in the next decade pledged by governments under the Paris climate agreement are by far not sufficient to attain the explicit aim of the agreement — they will not keep warming below the 2-degrees-limit.
- Emissions in 2030 would need to be at least 20 percent below what countries have pledged under the Paris climate agreement to keep costs and CO2 removal in check.
- Rapid short-term emissions reductions are the most robust way of preventing climate damages and large-scale deployment of carbon removal technologies can only be avoided when reliable CO2 prices are introduced as soon as possible.
March 28, 2018 Potsdam Institute for Climate Impact Research (PIK) Read full ScienceDaily article here
Rapid greenhouse-gas emissions reductions are needed if governments want to keep in check both the costs of the transition towards climate stabilization and the amount of removing already emitted CO2 from the atmosphere. To this end, emissions in 2030 would need to be at least 20 percent below what countries have pledged under the Paris climate agreement, a new study finds….
Removing CO2 from the atmosphere through technical methods including carbon capture and underground storage (CCS) or increased use of plants to suck up CO2 comes with a number of risks and uncertainties, and hence the interest of limiting them.
….”Emissions reduction efforts in the next decade pledged by governments under the Paris climate agreement are by far not sufficient to attain the explicit aim of the agreement — they will not keep warming below the 2-degrees-limit,”…”To stabilize the climate before warming crosses the Paris threshold, we either have to undertake the huge effort of halving emissions until 2030 and achieving emission neutrality by 2050 — or the emissions reductions would have to be complemented by CO2 removal technologies. In our study, we for the first time try to identify the minimum CO2 removal requirements — and how these requirements can be reduced with increased short-term climate action.”
…It turns out that, according to the computer simulations done by the scientists, challenges for likely keeping warming below the threshold agreed in Paris would increase sharply if CO2 removal from the atmosphere is restricted to less than 5 billion tons of CO2 per year throughout the second half of the century. This is substantial. It would mean for instance building up an industry for carbon capture and storage that moves masses comparable to today’s global petroleum industry. Still, 5 billion tons of CO2 removal is modest compared to the tens of billion tons that some scenarios used in climate policy debates assume. Current CO2 emissions worldwide are more than 35 billion tons per year…
…first, rapid short-term emissions reductions are the most robust way of preventing climate damages, and second, large-scale deployment of CDR technologies can only be avoided when reliable CO2 prices are introduced as soon as possible….”Ramping up climate policy ambition for 2030 to reduce emissions by 20 percent is economically feasible. It is all about short-term entry points: rapidly phasing out coal in developed countries such as Germany and introducing minimum prices for CO2 in pioneer coalitions in Europe and China makes sense almost irrespective of the climate target you aim for. In contrast, our research shows that delaying action makes costs and risks skyrocket. People as well as businesses want stability, and this is what policy-makers can provide — if they act rapidly.”
Jessica Strefler, Nico Bauer, Elmar Kriegler, Alexander Popp, Anastasis Giannousakis, Ottmar Edenhofer. Between Scylla and Charybdis: Delayed mitigation narrows the passage between large-scale CDR and high costs. Environmental Research Letters, 2018; 13 (4): 044015 DOI: 10.1088/1748-9326/aab2ba