Global agreement on carbon taxes is unlikely

Low oil prices could favour the introduction of a carbon tax

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Mekong competition may see China/US diplomatic crisis

Mekong disputes may become as critical as those in the South China Sea

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New rules in the private rented sector come as energy affordability grows as a political issue across EU

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Growing drone sales to South-east Asia will exacerbate geopolitical risks

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Cities are key to global growth, though results are uneven thus far

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Low energy prices and differences over Russia could block plans for a European energy union

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A switch to modular phones could revolutionise a product that contributes to developing world environmental damage

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Poor water management and lack of rainfall risk widespread political and economic consequences

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Lower oil prices and indigenous activism may bring about a rethink in hydrocarbons investment programmes

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Europe's green parties are at risk of political irrelevance, despite popular support

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