Agence France Presse: India could invest up to 10 billion dollars (6.34 billion euros) in Canada’s tar sands oil industry, the head of the country’s state oil company said Thursday. Canada has vast reserves of tar sands — a dense mixture of sand, water and petroleum used to extract bitumen — but the development of the industry is controversial because of its environmental impact. “We have looked into those (tar sands) opportunities in Canada and done our due diligence,” R.S. Sharma, the …