Last March, the European Union's member countries agreed to a binding target to boost overall renewable energy use by 20% before 2020.

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Although this is a non-binding target, it is likely to become a condition for preparing to push the increase through this autumn.

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In the UK, the government's best estimates are that new nuclear power stations will cut our emissions by four percent some time after 2020, yet our binding target is a 34 percent cut, by 2020.

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Its strategy is determined by the UK's legally binding EU target of achieving 15% of total energy from renewable sources by 2020.

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One week prior to the summit, Jairam Ramesh, member and minister of state for environment and forests, told India's Parliament that the country should plan to reduce the ratio of pollution to production by 20% to 25% compared with 2005 levels, but like China, not accept a legally binding emissions reduction target.

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The government spent 0.56% on aid in 2010 and is planning legislation to make the target legally binding.

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The researchers in this study examined the geometric structure and behaviour of one of the rotavirus's surface proteins, called VP4, which plays a key role in binding on to the surface of a target cell, and breaking through its membrane.

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