Global warming could cost $ 600 trillion by the end of the century if we do nothing
The invoice, in the event of non-compliance with the objectives of the Paris Agreement, could be very salty according to a study which studied the costs and the financial impacts. It could amount to $ 600 trillion by the end of the century.
Failure to comply with the objectives of the Paris in matter of global warming could cost up to $ 600 trillion by the end of the century, according to a study published Tuesday in Nature Communications. The agreement signed in 2015 shows the objective of containing the Warming " significantly below 2 ° C compared to pre-industrial levels "And, if possible, at 1.5 ° C, countries committing to" national contributions »(NDC) to be renewed every five years.
Complying with the Paris Agreement would cost less
However, the current NDCs – which were to be revised during the COP 26 in November in Glasgow, postponed due to pandemic of Covid-19 – place the planet on the trajectory of a Warming from 3 ° C to 4 ° C by 2100, according to UN experts. The study analyzes costs (damage linked to climatic events, for example) as well as investments (low-carbon technologies in particular) to assess the theoretical losses or gains for the world economy under different scenarios.
Failure to meet the targets of the Paris Agreement could thus cost between 126,000 and 616,000 billion dollars, while the world economy could see gains of 336,000 to 422,000 billion by respecting the targets of 2 ° C or 1.5 ° C respectively. And non-compliance with the current NDCs, while Donald Trump's United States must withdraw from the Paris Agreement this autumn, for its part could cause losses ranging from 150,000 to 790,000 billion.
COP25: respecting the Paris Agreement would preserve world food
Encourage investments in low-carbon technologies
Conversely, balancing losses and revenues would require investments between 18,000 and 113,000 billion dollars, of which more than 90% of the share G20 countries, according to the study. " Implementing a strategy to preserve yourself requires awareness of the gravity of global warming to allow progress in low-carbon technologiesSaid Biying Yu, of the Beijing Institute of Technology, lead author of the study, noting that countries generally prioritize short-term gains on investment in the economy. weather.
" Without these investments, broadcasts (of greenhouse gas) cannot be reduced, and climate damage will be more likely to occur, resulting in immense economic loss. If countries are aware that they will incur these losses if they do not reduce their broadcasts, will they be more rational in their choices, strengthening their response to climate change? Asks the researcher.
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