Hitting the Paris Agreement goal of net-zero carbon emissions will require investments in a green transition worth 2%-3% of world output each year until 2050, far less than the economic cost of inaction, according to a Reuters poll of climate economists.
Respondents also said such a transition depended on the rich world fulfilling promises to help developing economies, and on measures to set a global carbon price of at least $100 - well above the level reached in most current schemes.
While the Sept. 16-Oct. 20 poll also revealed differences among top forecasters over how to measure the economic stakes of climate change and decarbonisation, it showed a strong consensus of views around the benefit of early and coordinated action. The International Monetary Fund this month cited estimates that net zero by 2050 would mean extra investments of 0.6%-1% of annual global GDP over the next two decades amounting to a cumulative $12 trillion-$20 trillion.
A "business-as-usual" trajectory leading to temperature rises of 1.6C, 2.4C and 4.4C by 2030, 2050 and 2100 respectively would result in 2.4% lost output by 2030, 10% by 2050 and 18% by 2100, according to the median replies to the survey.In contrast, if countries can jointly limit the temperature rise to 1.4C by the end of the century, the loss to global output would be reduced to 2.0% by 2030, 2.3% by 2050 and 2.5% by 2100, they forecast.
Brasil Últimas Notícias, Brasil Manchetes
Similar News:Você também pode ler notícias semelhantes a esta que coletamos de outras fontes de notícias.
Carbon needs to cost at least $100/tonne now to reach net zero by 2050: Reuters pollSetting the global average price of carbon per tonne significantly higher at $100 or more is necessary right away to incentivise net zero emissions by 2050, according to a Reuters poll of climate economists.
Consulte Mais informação »
Australia's cabinet set to meet on deal for net zero emissions target - sourcesAustralia's cabinet is expected to formally adopt a target for net zero emissions by 2050 when it meets later on Monday to review an deal reached between parties in Prime Minister Scott Morrison's coalition government, official sources told Reuters.
Consulte Mais informação »
Top oil exporter Saudi Arabia targets net zero emissions by 2060Saudi Arabia announces it aims to reach “net zero” greenhouse gas emissions by 2060, joining more than 100 countries in a global effort to try to curb man-made climate change.
Consulte Mais informação »
Carbon Offsets Are Used by Companies Seeking ‘Net Zero,’ but Concerns PersistMany companies are turning to offsets to help meet their pledges to achieve “net-zero” carbon emissions, but the lack of consistent standards and oversight makes their effectiveness in cutting emissions hard to gauge
Consulte Mais informação »
Major oil producer Saudi Arabia announces net-zero by 2060One of the world’s largest oil producers, Saudi Arabia, has announced it aims to reach “net zero” greenhouse gas emissions by 2060, joining more than 100 countries in a global effort to try and curb man-made climate change.
Consulte Mais informação »
Top oil exporter Saudi Arabia targets net zero emissions by 2060Saudi Arabia's crown prince said on Saturday that the world's top oil exporter aims to reach 'net zero' emissions of greenhouse gases, mostly produced by burning fossil fuels, by 2060 - 10 years later than the United States.
Consulte Mais informação »