Ten students are among representatives from nearly 200 countries gathered in Poland for COP24, the U.N. conference on climate change. This year’s meeting will focus on how to achieve climate goals set in the 2015 Paris Agreement.

Policy, advocacy and industry leaders are coming together Sept. 29 at Washington University in St. Louis to discuss the past, present and future of climate change. Environmental leader Christiana Figueres is among the speakers.

A team at Washington University in St. Louis has created a bacteria that uses photosynthesis to create oxygen during the day, and at night, uses nitrogen to create chlorophyll for photosynthesis. This development could lead to plants that do the same, eliminating the use of some — or possibly all — man-made fertilizer, which has a high environmental cost.

This Earth Day, leaders at Washington University in St. Louis announced a new name and an increased emphasis on the university’s united sustainability effort: the International Center for Energy, Environment and Sustainability, or InCEES.