Business Green: The Obama administration’s campaign to convince the world that the US is doing all it can to curb carbon emissions received a boost this week with the announcement that the Department of Energy has awarded a further $550m in Federal grants to renewable energy projects. The new funding, which takes the total stimulus funding dished out to the renewables sector over $1bn, was awarded to 25 projects as part of the government’s 1603 programme. Under the scheme, renewable energy …