Athletes from around the world will be vying for Olympic and Paralympic medals during this year's games in Rio. But these medals have some special details.
In the U.S., change and innovation often occur at the local level; cities and localities have been at the forefront of efforts to address climate change.
Presidents Obama and Xi Jinping have agreed to join the Paris agreement as early as possible this year and work on significant climate change actions.
The 5,000 medals of the 2020 Olympics and Paralympics will feature metals — including 40 kilograms of gold — reclaimed from discarded electronic devices.
Angela Haseltine Pozzi hopes her sculptures made from plastic trash will inspire people to think more about how they can help protect the ocean.
Fisheries face challenges that could mean the loss of food and jobs for billions. World leaders will meet at the Our Ocean conference, September 15–16.
Ahead of COP26 in November, countries around the world are making new pledges to reduce greenhouse gases or updating old ones.
Healthy marine protected areas safeguard the well-being of people by providing food, medicines and sheer beauty.
A new technique that takes CO2 emissions generated by factories and cars could create new material for buildings, aircraft and athletic equipment.