The 35th anniversary of Earth Day will take place on April 22. Through the combined efforts of government, grassroots organizations and environmentally minded companies, Earth Day has evolved into a worldwide campaign to protect the global environment. In the U.S., the Department of Energy (DOE) is also concerned about protecting our environment and resources. To address these issues, the DOE recently issued a mandate that now requires all new, central air conditioners manufactured after … [Read more...]