The Revenant star was honoured at the World Economic Forum’s Crystal Awards in Davos, Switzerland on Tuesday (19Jan16), and he confirmed he would be making another big donation during his speech. "We simply cannot allow the corporate greed of the coal, oil and gas industries to determine the future of humanity," the 41-year-old actor told the crowd. "Those entities with a financial interest in preserving this destructive system have denied, and even covered-up the evidence of our changing climate. Enough is enough. You know better. The world knows better. History will place the blame for this devastation squarely at their feet. "Our planet cannot be saved unless we leave fossil fuels in the ground where they belong. Twenty years ago, we described this problem as an addiction. Today, we possess the means to end this reliance."