id	keyword
issue-2651	energy
issue-2651	development
issue-2651	areas
issue-2651	production
issue-2651	independence
issue-2651	biofuel
issue-2651	vol
issue-2651	waste
issue-2651	efficiency
issue-2651	energy independence
issue-2651	sources
issue-2651	land
issue-2651	potential
issue-2651	bioenergy