The concept behind carbon credits has taken a major hit recently as scientific research has repeatedly shown claims of reduced emissions under the schemes are often hugely overestimated—or simply non-existent
The COP28 climate talks have been flooded with announcements hyping controversial carbon credits before rules for them have been hammered out, with environmental groups fearing "greenwashing" on a massive scale.
The concept behind the credits has taken a major hit recently as scientific research has repeatedly shown claims of reduced emissions under the schemes are often hugely overestimated—or simply non-existent.
Carbon credits allow corporations—or countries under certain conditions—to offset their greenhouse gas emissions.
One credit equals the reduction or removal of one tonne of CO2 from the atmosphere, often in developing countries by projects focusing on things like fighting deforestation.
Scientists stress that any offsetting should not be used as a passport to continue polluting, with emissions needing to fall by almost half this decade to meet global warming goals.