President Trump's approval of Andrew Wheeler, a former coal lobbyist, as the Environmental Protection Agency's new chief to replace Scott Pruitt has renewed partisan debate about climate change and the environment.
A November ballot initiative is being proposed in Washington State that would require fossil fuel companies to pay carbon fees for their emissions. Supporters say it increases accountability for the companies, opposers say it will increase gas and oil prices.
For the past two years, researchers have been studying Kenya's underground water resource system with the ultimate aim of determining sustainable water practices in a country struggling to meet water demand.
The Colorado River is predicted to suffer water shortages in the coming years that could affect 40 million people. That's why Arizona is working to develop a conservation plan for the river network by the end of the year.
Visitors pose for pictures with an art installation at Vinyl Museum in Tokyo on July 20. The museum is designed to attract young women who are interested in taking pictures of themselves with the installations and uploading the photographs on social media platforms.