What is a carbon credit? Simply put, it is the certificate or permit that allows entities to emit a certain amount of greenhouse gases. The idea behind carbon credits is that companies and countries can buy and sell these credits in order to reduce their emissions. Carbon credits were created as part of the Kyoto Protocol, an international treaty aimed at reducing greenhouse gas emissions.

The benefits of using carbon credits are twofold: they provide an incentive for companies and countries to reduce their emissions, and they create a market for trading these reductions. This helps to drive down the cost of reducing emissions, making it more affordable for everyone involved. In addition, by creating a market for carbon reductions, it gives businesses and investors an opportunity to make money while helping to fight climate change.

There are some criticisms of carbon credits – namely that they don’t always result in real reductions in emissions – but overall they are seen as a positive step forward in tackling climate change. They have been successfully implemented in many countries around the world, including Canada which has been using them since 2007.

A carbon credit is a tradable certificate that represents the right to emit one tonne of carbon dioxide (CO2) or the equivalent amount of another greenhouse gas. They are created under an emissions trading scheme (ETS) when a company or other entity needs to surrender emission allowances, but cannot due to lack of available allowances. Carbon credits can be bought and sold in secondary markets, and can also be used by companies to meet their compliance obligations under an ETS. The price for carbon credits varies depending on market conditions, but has been known to exceed $US30 per tonne.

The first global carbon credit scheme was established in 2005 under the Kyoto Protocol. Since then, many countries have developed their own domestic schemes, including China, Australia and California. In addition, there are now several international schemes that allow companies from different countries to trade emissions allowances with each other. These include the European Union's Emissions Trading Scheme (EU-ETS), the United States' Chicago Climate Exchange (CCX) and Japan's Tokyo Green Exchange (TGE).

Carbon credits have been traded in cryptocurrency space since early days of Bitcoin [1]. At that time they were mainly used as means of exchange between buyers and sellers who did not want exposure to volatility associated with traditional cryptocurrencies such as Bitcoin . In recent years however ,carbon credit has started being seen as investment opportunity because its price is relatively stable compared totraditional cryptocurrencies .

There are few projects currently working on bringing blockchain technology into carboncredit space . One example is WePower which plans ti use blockchain technologyto create transparent ,efficientand secure system for trading renewable energy certificates[2] Another projectis Credits which plans tobuild decentralized network for registration ,verificationand accountingof green energy generation[3]. Both these projects plan touse smart contracts toreplace centralized systems currently usedin this industry . This could potentially resultin more efficient allocationof resourcesand lower coststo participants in green energy marketplaces