(CNN) None of the countries that make up the G20 group of major world economies is on course to adequately reduce climate change, with 82% of the bloc's energy supply still coming from fossil fuels, a new report has warned.

Of the countries, only India has set targets that would keep global temperature rise below 2 degrees Celsius, the upper limit recommended by the Paris Climate Agreement, if adopted globally.

Overall, the world is heading for a 3.2-degree rise, the organization Climate Transparency said , in an analysis of the G20's current emissions-cutting targets for 2030 published Wednesday.

Targets set by the worst offenders -- Russia, Saudi Arabia and Turkey -- would lead to a rise of more than 4 degrees if they were adopted worldwide, the report added.

The G20 comprises representatives from Argentina, Australia, Brazil, Canada, China, the European Union, France, Germany, India, Indonesia, Italy, Japan, Mexico, Russia, Saudi Arabia, South Africa, South Korea, Turkey, the United Kingdom, and the United States.

Read More