The launch on Friday served as the start of the pair's Clean Generation Initiative, an effort to encourage policy-makers and businesses to develop and adopt sustainable energy technologies.

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The United States will work with all nations that are part of this convention to adapt to the impacts of climate change, gain access to clean and more energy-efficient technologies, and promote sustainable forestry and agriculture.

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She said Labour would also boost the economy in Norfolk through "investment in long-term sustainable new technologies and industries from regional, central and European funding sources, for example, the sustainable energy sector".

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