Grist: Chinese investment in the Indian renewable energy sector has skyrocketed recently, and construction equipment manufacturer Sany Group is the latest to join the push. The company announced last week that it will direct $3 billion toward the development of at least two gigawatts of renewable energy capacity in India, largely in the states of Maharashtra and Andhra Pradesh. That`s a lot of cash and a lot of capacity, and announcements like these check a solid handful of other sustainable development...