Total, the French oil group, has warned politicians that they risk accelerating an oil supply crunch if they enact environmental policies that deter investment in oil and gas before enough viable alternatives are available.
In depth: Copenhagen summit
News and analysis in the build up to the climate change conference in Copenhagen
“Governments need to assess the needs of this planet in terms of energy and stop saying we will develop solar and then not have enough,” Christophe de Margerie, Total’s chief executive, said in an interview with the Financial Times. “Carbon is not the enemy; carbon is life.”

Climate change 
