This document provides an overview of carbon markets and their performance. It discusses global warming and the Kyoto Protocol, which established a carbon trading system. Under this system, countries receive carbon allowances and can trade excess allowances if emissions are lower than allowed. The EU ETS and Chicago Climate Exchange are two carbon markets discussed. India earns income from selling carbon credits and has companies involved in carbon trading. In conclusion, carbon trading provides incentives to reduce emissions and implement green technologies through a cap-and-trade system.