Retailer Marks & Spencer will have achieved half of its 180 commitments outlined in its Plan A sustainability programme by next April, the company said.

The company has completed 70 of the 180 commitments designed to make it the world’s most sustainable major retailer by 2015, while another 20 are on target to be achieved by April 2011.

The six-monthly progress update highlights a number of new measures, including the fact that stores, offices and distribution centres in the UK are now recycling 92% of their operational waste, up from 53% in June.

Twenty new Greener Living Spaces for next year have been funded by the profit from M&S’s 5p food carrier bag charge, and 35,000 free Energy Monitors have been distributed to employees to help them reduce energy use and costs.

Twenty-five stores are using environmentally friendly refrigeration systems, with a further 175 converted to cleaner HFC systems.

And the retailer’s Scottish Haddock has been granted MSC certification, while M&S has announced the launch of its biggest ever healthy food and drink range from January.

“Plan A is an integral part of our business and at the heart of the M&S brand,” said Marc Bolland, chief executive.

“We’ve achieved a great deal and we now want to make sure that more of our 21m customers get involved in Plan A, making it easier for them to live more sustainable lifestyles.”