The EURoPEAn ENVIRONMENT AGENCy (EEA) publishes a report on resource efficiency in bionenergy production

"Forest biomass and productive land are limited resources, and part of Europe's 'natural capital'. So it is essential that we consider how we can use existing resources efficiently before we impose additional demands on land for energy production." Hans Bruyninckx, EEA Executive Director

The report highlights that the current renewable energy crop mix is not throughout environmentally friendly. It recommends "a broader mix of crops to reduce environmental impacts. Specifically, this should include perennial crops, which are not harvested annually – for example energy grasses or short rotation willow plantations." (Source: EEA).

Read more about the report here.