This Earth Day, the United States, China, and Canada are among more than 170 countries expected to take part in the largest one-day signing of an international agreement in history. The ratification of the climate agreement hammered out at the Paris Conference of Parties (COP-21) last December could be the most significant elevation of environmental issues on the global stage yet.

Today, Africa has the world’s highest fertility rates. On average, women in sub-Saharan Africa have about five children over their reproductive lifetime, compared to a global average of 2.5 children. Research shows that the “demographic transition,” the name for the change from high death and fertility rates to lower death and eventually lower fertility rates, has proceeded differently here from other regions in the developing world.

The saying goes, what hasn’t been counted doesn’t count. Our latest datasets for the Environment and Gender Information (EGI) platform are proving this true.

Some, especially in the scientific community, get frustrated at the seeming lack of scientific literacy among the general public and policymakers. This is a two-part problem, however. The general public must understand the implications of science and data, yes, but it is also important for the scientific community to effectively convey their work and educate the next generation.

Africa has its share of challenges, but it also leads the way in creative development responses. Take the Lake Tanganyika area in Tanzania. Daily life is hard. There are few roads. Cellphone service is patchy. You must travel by boat for seven hours to reach the nearest hospital. And if you have an obstetric emergency, there is no doctor in the village to help you.

To encourage a new generation of urban policymakers and promote early career research, the Wilson Center, U.S. Agency for International Development, IHC – Global Coalition for Inclusive Housing and Sustainable Cities, World Bank, and Cities Alliance are sponsoring the 7th Annual Urban Poverty Paper Competition. The competition is open to graduate students working on topics related to urban poverty in the developing world.

Developing countries are in a pitched fight against the effects of climate change, and women, playing prominent roles in agriculture and household resource collection, are “at the front lines in the battle,” writes UN Framework Convention on Climate Change Executive Secretary Christiana Figueres, in a new report.