President Nicolas Sarkozy 9pictured) has told the council of ministers that a revamped carbon tax will be presented to the cabinet later this month and that it will go into force on July 1, government spokesman Luc Chatel told reporters.(AFP/File/Eric Feferberg)AFP - The French government decided Tuesday that a new carbon tax to fight global warming will go into force in July, a week after the constitutional court struck down a previous version of the measure.