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Concept
Carbon price
Summary
Carbon pricing (or pricing) is a method for nations to address climate change. The cost is applied to greenhouse gas emissions in order to encourage polluters to reduce the combustion of coal, oil and gas – the main driver of climate change. The method is widely agreed and considered to be efficient. Carbon pricing seeks to address the economic problem that emissions of and other greenhouse gases (GHG) are a negative externality – a detrimental product that is not charged for by any market.
A carbon price usually takes the form of a carbon tax or a Cap and Trade system (generally via an emissions trading scheme (ETS)), a requirement to purchase allowances to emit.
21.7% of global GHG emissions are covered by carbon pricing in 2021, a major increase due to the introduction of the Chinese national carbon trading scheme. Regions with carbon pricing include most European countries and Canada. On the other hand, top emitters like India, Russia, the Gulf states and many US states have not yet introduced carbon pricing. Australia had a carbon pricing scheme from 2012 to 2014. In 2020, carbon pricing generated 135–5500 in 2030 and 3000/t as a result of economy feedbacks and falling global GDP growth rates, while policy recommendations range from about 200. Many carbon pricing schemes including the ETS in China remain below ) in February 2023.
A carbon tax is generally favoured on economic grounds for its simplicity and stability, while cap-and-trade theoretically offers the possibility to limit allowances to the remaining carbon budget. Current implementations are only designed to meet certain reduction targets.
Official source
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