Biodiversity offsetting : sixth report of session 2013-14, report together with formal minutes relating to the report

The Environmental Audit Committee reports that Government plans to introduce a system of 'biodiversity offsetting' for new building developments could enhance the way the planning system accounts for the damage done to valuable natural habitats, but the proposals must be improved to properly protect Britain's wildlife and woodlands.

The Green Paper does not provide an evidence based analysis of how offsetting would deliver "biodiversity gain".

The twenty minute assessment for calculating biodiversity losses at a site, proposed by Ministers, is also overly simplistic.

It should include particular species, local habitat significance, ecosystem services provided - such as pollination and flood prevention - and 'ecosystem network' connectivity to reflect the full complexity of habitats.

Sites of special scientific interest and ancient woodlands should be even more rigorously protected.

A mandatory, rather than voluntary, offsetting system would allow more environmentally and economically viable offset projects to be brought forward. The report also warns of a danger that an offsetting market could produce many offsets of a similar, lowest-cost, type rather than a mixed range of habitats.

Natural England should monitor schemes to ensure a balance of habitat types are covered in the offsets.

It is also important to consider the implications of biodiversity offsetting for people's access to nature and well-being.

A decision on the Government's offsetting proposals should not be made at this time.

Offsetting pilots, set up in 2011, should be allowed to run their course and then be subjected to the independent evaluation previously promised by ministers.