Environmental causes relating to wildlife and nature are amongst the ’90s most visible marketing trends. It is possible that increased media coverage of environmental disasters and social problems have spurred public interest in these issues. Ford Motor Company shows their environmental concerns in their ad campaign in conjunction with Time Magazine and Time For Kids magazines. They later became the sponsor of Time's "Earth Day 2000 Special Edition: How to Save the Earth and the Heroes for the Planet Who Are Making It Happen." Ford was the exclusive advertiser in several special issues of Time for Kids and three websites, with an audience of 2.8 million elementary school students.