Archive for Category: "Air"

Mapping major emitters with EPA’s greenhouse gas tool

Mapping major emitters with EPA’s greenhouse gas tool

If you’re curious about the industrial operations that are emitting greenhouse gases (GHG) in your state or neighborhood, the U.S. Environmental Protection Agency (EPA) has a great data tool that also provides some helpful context with its visualizations. Data is only available for 2011, but EPA’s tool provides a wealth of information for interested citizens […]

Greenhouse gases: how do Western states compare?

Greenhouse gases: how do Western states compare?

One of the great challenges in reducing greenhouse gas (GHG) emissions is that the pollution emanates from so many activities and economic sectors. In this set of slides, we examine the sources of heat-trapping GHGs, with a focus on Western states. Greenhouse gas emissions overview from EcoWest on Vimeo. Nationally, nearly one third of GHG […]

Flow diagrams of U.S. and Western carbon emissions

Flow diagrams of U.S. and Western carbon emissions

The United States emits around 5.6 billion metric tons of carbon dioxide equivalent (CO2e) each year. That’s roughly the annual CO2 exhaust of 1.2 billion cars, according to the U.S. EPA’s Greenhouse Gas (GHG) equivalency calculator, and it’s nearly 20 percent of annual global GHG emissions. U.S. and Western carbon flow diagrams from EcoWest on […]

Our air is cleaner, but big challenges remain

Our air is cleaner, but big challenges remain

We’ve made significant progress in reducing pollution since the Clean Air Act (CAA) was enacted more than 40 years ago, even during a period of strong economic growth. Just since 1990, when the CAA was last amended, GDP is up 65%, while aggregate emissions of the six major pollutants that the U.S. Environmental Protection Agency […]

Wind and ocean currents visualized

Wind and ocean currents visualized

You may not need a weatherman to know which way the wind blows, but the data that climate researchers collect can certainly deliver some beautiful visualizations of the currents constantly swirling in the skies and oceans. Witness the Perpetual Ocean, a project of NASA’s Scientific Visualization Studio. This video, shown below, depicts the flow of […]