This week, the International Court of Justice began hearing oral arguments in a high-profile case brought by the island nation of Vanuatu on what obligations United Nations member states have under international law to protect the planet from greenhouse gas emissions for future generations.

Pope Francis' plan to build an eco-village in the historic gardens of Castel Gandolfo, the summer residence of the popes, will be complete for the 2025 Jubilee. The "Borgo Laudato Sì" project, which combines sustainable agriculture with environmentally friendly teaching programs aimed especially at vulnerable and marginalized groups.

Chad Pregracke of East Moline, Illinois, established Living Lands & Waters, an environmental organization, in 1998 in his hometown along the Mississippi River. He and his staff host river cleanups, watershed conservation initiatives, workshops and tree plantings, among other conservation efforts.