By Olivia Rosane and Cristen Hemingway Jaynes Quick Key Facts What Is Methane? What has no color or smell and is found in wetlands, cow burps and your basement furnace? The answer is methane — a powerful greenhouse gas that is the second most important contributor to the climate crisis after carbon dioxide (CO2). It […] The post Methane 101: Understanding the Second Most Important Greenhouse Gas appeared first on EcoWatch.