The European Union is preparing to take the next step in tackling climate change after its executive arm presented a draft legislative package on 23 January 2008. The draft legislation proposes an EU-wide greenhouse gas emission trading scheme and enery related measures. Feb 2008

Based on the verified emissions for the 2005 and 2006 trading years, the actual emissions and allowances for each installation
covered by the EU Emissions Trading Scheme (EU ETS) were compared. Based on data available for 24 Member States as

The cluster of beige corrugated-iron sheds and silos don't look like much, but this unassuming factory in a suburb of Melbourne, Australia, represents a potential revolution in greenhouse gas emissions. It's the first commercial enterprise in the world dedicated to transforming waste from power stations and blast furnaces into geopolymer concrete, a particularly promising green concrete.

Perhaps genetic engineering could help to increase the efficiency with which crops absorb nitrate from soil (5 January, p 28). However, the claim by Arcadia Biosciences that this will substantially cut agricultural emissions of the greenhouse gas nitrous oxide appears Utopian rather than Arcadian. (Letters)