Key differences between the US and Europe could undermine a new worldwide treaty on global warming to replace Kyoto, sources say

New draft regulations would give France one of the world's most generous solar feed-in tariffs

Legal firms offer to work for free to help shape new carbon legislation

Supermarket's ozone-friendly refrigerators to reduce carbon footprint by 20 per cent

Administrators for Solar Systems hoping to identify saviour for the cash-strapped firm within six weeks

Firms to invest $409m in South Korean plant with ambitious goal of capturing 30 per cent of global market

Market enjoys bumper trading week as participants return from summer break

President insists new tax on carbon emissions essential to France's development as a low-carbon economy

Economic expansion cannot be achieved forever if greenhouse gases are to be curbed, warns the leading economist and author of the UK's government's report on climate change