'co2' entries

Dave Ames, a science teacher at Cohasset High School in Cohasset, Massachusetts built a large cube that represents the size of 1 ton of carbon dioxide. Take a look.

Switching to compact fluorescent lightbulbs (CFLs) is one of the single most effective steps you can take to reduce carbon dioxide emissions and save money at the same time. Yet CFLs contain a small amount of mercury, a highly toxic element. Do CFLs increase the amount of mercury in the environment?

As you know, Global warming (or climate change) is all about trying to reduce the amount of carbon dioxide that we are putting into the atmosphere. So how are we doing? What is the current CO2 level in the earth's atmosphere?

Here are the top 3 things that we need to do to fight global warming.

Congratulations EnergyRacers. You are reducing over 3,000 tons of CO2. That's a 17% carbon footprint reduction per member. While some of us have taken on the big projects like new windows (8%) or solar power (3%), most of us are doing the little things that add up to tons of CO2 reductions:

Several of you have asked how EnergyRace calculates your carbon footprint (or CO2 emissions). Sometimes you ask because you are curious but many times it is because the EnergyRace number is either higher or lower than you expected. So here is how it works.

Last week we looked at the bad news about increases in US greenhouse gases from 2000-2004. Here is some good news.

As we look at carbon offsets, what can we learn from how Daycare Centers try to get parents to do the right thing and be on time for child pickup.