For the past six months the Climate Bonds Initiative, working with a range of associated groups, has been pressing political parties in the UK to adopt policies for a "Green Investment Bank" and for "Green Bonds". (You can read more about these proposals in our Climate Bonds discussion paper).
In late November the UK Conservative's Shadow Chancellor announced that, if they win government, they will set up a Green Investment Bank to:
"design frameworks that provide the certainty and incentives to attract private sector investment in green technologies"