Since 1973, the international day has helped to both celebrate the planet and put a spotlight on the perils it faces. Most importantly, it has driven change, ultimately leading to landmark global treaties from plastic pollution to food waste.
Selwin Hart, the Secretary-General's Special Adviser on Climate Action, shares insights on the objectives of this year’s Climate Summit and assesses global progress ahead of COP30.
The ozone layer is healing thanks to the Montreal Protocol, which phased out most harmful chemicals. Full recovery is expected by mid-century, if vigilance continues against illegal emissions, stockpiles and rising threats like nitrous oxide.
At World Water Week in Stockholm, experts highlighted historic progress in drought preparedness, and called for turning knowledge and expertise into resilience for all. Here are five key takeaways.