Sustainability - Most Commented


Calcium: Not so good in high doses

Mar 5, 2014
Calcium is a fundamental building block in chemistry and in modern life.
Posted In: elements, calcium

Abandoning orange juice

Mar 5, 2014
Americans are drinking 40 percent less orange juice.
Posted In: orange juice

The EPA's new smog rules: Cost vs. benefit

Mar 3, 2014
Weighing the immediate costs of wringing more sulfur out of emissions, against long-term health and economic benefits from less smog.
Posted In: EPA, smog

There's the Keystone XL pipeline, and there's the other one

Feb 28, 2014
A Canadian company has asked for permission to double the capacity of another pipeline.
Posted In: Keystone XL

The highway repair fund is going broke

Feb 27, 2014
Some say it's because the gasoline tax hasn't gone up since 1993.
Posted In: gas mileage, highways

Cow burps: The environmental hazard.

Feb 25, 2014
Belching cattle are a larger source of methane gas emissions than natural gas drilling.
Posted In: cows, cattle, EPA

Natural gas bills are up and not just because of cold

Feb 25, 2014
Customers in the Northeast and Midwest are about to get big natural-gas bills, not only because they used a lot of gas during the freezing month of January.
Posted In: natural gas

Supreme Court reviews expansion of 2007 Clean Air Act

Feb 24, 2014
A lawsuit challenges the EPA's ability to apply specific regulations to other polluters.
Posted In: tailpipe emissions

Rail companies push for newer oil tank cars to reduce accidents

Feb 17, 2014
Without mandatory regulation, the railroad industry looks to pricing as way to encourage safety.
Posted In: Oil tank cars, railroads, Norfolk Southern

Drought or not, how should we value water?

Feb 17, 2014
The deep California drought is a reminder that water isn’t an infinite resource.
Posted In: California drought 2014