The ESA has opened the Clean Space initiative to deal with the space debris problem. This includes development of active removal technologies:
/-- ESA’s Clean Space targets orbital debris and greener environment - ESA - July.10.12.
/-- ESA Clean Space - Technologies for space debris remediation
Spacecraft insurers must take the space debris threat into account:
/-- Traffic jam in space threatens satellites - NewsInsurances.co.uk (via spacetoday.net)
/-- A white paper on space risks - Allianz/AGCS
/-- Space Risks: A new generation of challenges - Allianz/AGCS (pdf)