UK regulations will require all new homes to have zero net carbon emissions by 2016 . He added : `` In the UK , we are doing small-scale privately funded developments , whereas in China we are being asked to design whole city extensions with thousands of homes . '' Comment: Germany , Sweden and China have built more sustainable homes so far , say environmentalists .
UK regulations will require all new homes to have zero net carbon emissions by 2016 . Comment: Germany , Sweden and China have built more sustainable homes so far , say environmentalists .