Friday - Interest continues to build in the New Zealand market as the obligation start date of July 1 approaches, broker OMFinancial reports.

Friday - Clean technology will become so commonplace that we will no longer talk about it, says the head of an economic thinktank.

Friday - The company which bought NZX’s voluntary environmental registry TZ1 is not commenting on a drop in share value.

Friday - Forest owners hope that they will soon have clarity around the way in which carbon credits will be allocated for pre-1990 forests.

Friday - The Government is still working out just which industrial activities will qualify for free carbon credits under the emissions trading scheme.

Friday - A bold new bid by Marks and Spencer to become the world’s most sustainable retailer by 2015 sends an important signal to New Zealand businesses in the export supply chain, says a business lobby group.

Friday - Key United States senators are weighing a request from Big Oil to levy a carbon fee on the industry rather than wrap it into a sweeping cap-and-trade system that covers most of the nation’s economy.

Friday - Britain should consider a carbon tax on imports to help struggling manufacturers, according to one of the government's key advisers, despite fears such a measure could lead to a global trade war.

Friday - British households will be able to take out soft loans to improve the efficiency of their homes, under a new proposed law to fight climate change and cut fuel poverty.

Friday - British homes with low energy efficiency will lose value under government plans to intervene in the property market to help to cut greenhouse gas emissions from homes by a third by 2020.