Green circle, blue square, black diamond, and double black diamond—these ski run difficulty levels give skiers a rough idea of what to expect after they disembark the lift. Ski trail ratings ...

Energy giant teams up with recycling group Gjenkraft and ski makers EVI on project that turn old wind turbine blades into new skis Environmentally conscious skiers can now hit the slopes on skis ...

This accounted for just 0.3% of global jet fuel production. The EU previously said it is investing in SAF and that the mandate will ramp up slowly to address concerns about supply problems.