Energy agency warns that global fossil fuel subsidies could hit $660bn by 2020 based on current trends
Applying levies by volume rather than calorific content makes greener fuels comparatively more expensive than petrol or diesel
Sarkozy returns to reject carbon tax plans with proposal for new levy on polluting firms
Plans introduced to parliament for a A$23 levy per tonne of carbon from next year ahead of full emissions trading in 2015
WWF and Oxfam claim tax of $25 per tonne would generate over $10bn a year to help poorer nations deal with climate change
Germany's biggest bank accused of leaving the door open for tax evasion as Deutsche denies any wrong-doing
But "convoy of no confidence" fails to bring anticipated disruption to capital
Renewable energy amongst the winners as government announces 11 new Enterprise Zones
Average season tickets will increase eight per cent from next year, with some commuters paying up to 13 per cent more
Six men appear in German court accused of evading more than €200m in carbon credit VAT