According to BTG, it is necessary to price carbon

Through the purchase of compensatory carbon credits, punitive fees and taxes or to subsidize environmental investments, in a world with an increasingly global economy, countries must urgently define rules and clear valuation of carbon, emitted or sequestered, to no longer being operated on the basis of supply and demand, or merely political decisions, which makes it very difficult to plan costs and collaborate between nations in the race to reduce global warming.

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