UN Climate Speech Keynote speech by UN Climate Change Executive Secretary Simon Stiell at the Opening of the New York Climate Week Friends, colleagues, This particular event is a moment of reflection for me, as it marks one year in my role as Executive Secretary of the UNFCCC. In that spirit, I want to use...Read More

The Earth system is under unprecedented pressure from human activity and is in danger of losing the relatively stable conditions that allowed modern civilizations to evolve over the past 10,000 years, according to a recent study. Based on a concept introduced in 2009 to define Earth’s environmental limits, the updated study found that six of the nine planetary...Read More