The new environment secretary, Owen Paterson, is a fan of shale gas.

ECONOMIST: The reshuffle

HLDI, an affiliate of the Insurance Institute for Highway Safety, is a big fan of hybrid technology to save gas, rather than buying a smaller car.

FORBES: Hefty Batteries Make Hybrids Safer, Study Finds

Instead of a pressurised gas container, the backpack uses a lithium-ion battery to power the airbag with a fan.

BBC: The ski gear that could save lives