Business Green: Barack Obama’s $5bn (£3.2bn) retrofitting scheme to improve the energy efficiency of more than half a million homes fell 98 per cent short of its target last year, according to an official report released last week. The green home makeover programme, part of last year’s $787bn economic recovery plan, was supposed to create about 87,000 jobs insulating lofts and sealing drafty windows in 593,000 homes by 2012. But progress so far has been painfully slow, according to the report …