India says that it will produce 40% of its energy from sources other than fossil fuels by 2030, and will reduce the intensity of its carbon dioxide emissions by roughly one-third. The country’s highly anticipated announcement on 2 October comes ahead of United Nations talks in Paris this December, at which nations hope to reach an updated agreement to fight climate change.

Despite great strides in some areas of research and development, the nation still has a long way to go.

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There is more to combating HIV in the developing world than providing affordable drugs. T. V. Padma looks at the innovative new strategies being employed.