GREaTER Government help to encourage motorists and public bodies to invest in electric vehicles is needed if ambitious targets set by the Scottish Government to reduce climate change are to be met, an environmental charity has claimed.  WWF Scotland called for Government grants of ?10,000   twice the level provided by the UK Government   for the first 25,000 electric vehicles sold in Scotland to act as a catalyst for change and for a scrappage scheme.  The Scottish Government has pledged to achieve a  wholesale shift  to electric and low carbon vehicles by 2050 in order to achieve an 80% reduction in greenhouse gas emissions. WWF Scotland said this would require at least 290,000 electric cars to be in use north of the Border by 2020.  a report by transport consultancy atkins, which was commissioned by WWF, found that local authorities and other major public bodies were more likely to be early adaptors  of electric vehicles as they had bigger purchasing budgets.  However, public sector fleet managers said they were unlikely to buy electric vehicles unless Government help was on offer, atkins found.  Work was also needed to install public charging points, the report said.  The Scottish Government consulted on how to encourage electric and low carbon vehicle use a year ago and is due to set out a strategy on the subject.