Cut energy use, eat less meat and buy locally produced food. These are three examples of the necessary lifestyle changes included in the campaign launched by an international group of Catholic organizations this week. Following the pope’s call to fight climate change in his environmental encyclical, they are asking their members to make radically different lifestyle choices. The campaign is organized by CIDSE, an international alliance of 17 Catholic social justice groups from Europe and North America. CIDSE is aiming at a three-year campaign, focussing on energy and food consumption, and would use social media and workshops to encourage people to make better daily choices.