Much has been made of the emerging industrial gas market in Eastern Europe and growing industry in the region, yet the economic revival in the former Soviet bloc is thought to have been the main driver in pushing up industrialised nations' greenhouse gas emissions since 2000.

According to a report by Reuters, UN data shows that emissions by 40 industrialised nations grew by 2.3% to the equivalent of 18 billion tonnes of CO2 in 2006 - from 17.6 billion tonnes in 2000.

Biggest gains since 2000 were thought to have been by nations of the former Soviet bloc, where emissions rose 7.4% to 3.7 billion tonnes, in line with an economic upturn, having tumbled with the collapse of smokestack industries in the early 1990s.

Overall emissions by other industrialised countries rose 1% since year 2000, with transport the worst performing sector. It seems the need for greener, cleaner-burning fuels is again encouraged, as well as perhaps the need for initiatives such as carbon capture and storage (CCS).

Yvo de Boer, Head of the Climate Change Secretariat, is believed to have told a news conference in Bonn, $quot;Emissions trends... continue to be a cause of concern. Since 2000 they have been clearly on the rise.$quot;

The UN Climate Panel says global emissions should peak by 2015, and then fall, to avoid the worst of climate change that could bring water and food shortages by causing floods, heatwaves and more powerful storms.

The recently revealed data covers industrialised nations, with developing nations such as China and India no obliged to report their figures.