States, Cities, Businesses All Seek Solutions — a Baseline Inventory is a Good Place to Start With increasing concern for global warming, you've likely been hearing a lot about the need to reduce emissions of carbon dioxide (CO2) and other greenhouse gases. These pollutants collect in the atmosphere, trapping the sun's heat and causing the planet to warm up. Given the level of activity surrounding this issue, it's not too early to prepare your organization for a greenhouse gas reduction program.