First, "Benign by Design" is a call to the producer to use green chemistry to change the material to be inert in the environment.

CNN: STORY HIGHLIGHTS

Many recipients said the "junk mail" undermined parties' green credentials but campaigners claim the material is essential to convey their manifesto.

BBC: News

IBISWorld indicates that the surge of new government regulations will galvanize green jobs in the fields of environmental preservation, sustainable building material manufacturing and remediation and environmental cleanup services industries.

FORBES: Green Jobs Dominate Ranking of Fastest-Hiring Industries

"These results reflect the major issues that Thomas Cook faced last year, but they mask the material improvement that we made in the fourth quarter, " said Harriet Green, who took over as chief executive in the summer.

BBC: Thomas Cook sees losses widen on higher fuel costs

She added that powers would not be limited to national security matters - the green paper says the procedure could be triggered by the secretary of state deciding "that certain relevant sensitive material would cause damage to the public interest if openly disclosed".

BBC: UK Politics