If you google the question, you will find lots of information. Basically, a carbon credit is a permit that allows the holder to emit one ton of carbon dioxide.It has to do with global warming, the stock market, people investing in something that does not exist and redistribution of wealth.
Purchasing carbon credits so that the carbon you produce (industry for example) will offset the carbon footprint you have left. And who do you think will end up paying for these carbon credits that companies will have to buy? Not the owner, that is for sure. They will pass the cost on down to the consumer. It deals with transfer of wealth from richer countries to poorer countries. I believe It will impact every aspect of business and subsequently, the consumer.
Climate change legislation has not passed, but unless we all become aware of the situation, it may.
I just saw this on Penn & Tellers (Bullsh*t) on Netflix, Al Gore started a company that sells carbon credits but instead of reducing his footprint he keeps living in his mansion and just buys credits from his own company. They reviewed a couple of companies that sell carbon credits and neither was consistent with a formula on how to calculate what type of footprint you actually leave behind.