Five people were treated after a chlorine leak at Apple's data center in Catawba County, North Carolina. They reported feeling dizzy and lightheaded.
Tesla Motors co-founder Ian Wright wants to make trucks cleaner and greener. His firm Wrightspeed makes electric powertrains for garbage and delivery trucks. It's expanding fast as fleet owners retrofit aging trucks to meet stricter emissions standards.
Hundreds of giant plants called coal breakers dominated the landscape a century ago, when the coal was widely used to fuel factories and heat homes. The St. Nicholas Breaker remains the last one standing. Now it, too, is being dismantled.
The first round-the-world solar-powered flight, known as the Solar Impulse Two, is setting out for the nonstop six-day leg of its journey from Asia to Hawaii.
Under the desert sun of New Mexico, scientists have engineered ancient bacteria to produce carbon-neutral ethanol using just the sun, waste carbon dioxide and non-potable water. The fuel that results could one day be cheaper than oil.
Tesla is building what will be the world's largest battery factory. New drone footage taken in the desert of Nevada shows how far construction has moved along.
If the butts are carefully processed, the cellulose acetate inside the filters can be used to make things such as park benches and pallets.
Authorities say as many as 105,000 gallons may have leaked out of a busted pipeline.
Authorities along California's central coast are dealing with one of the worst oil spills in years after a ruptured pipeline seeped crude into a storm drain for hours.
Belgium is known for its beer — and its chocolate. Now scientists say if you put the two together, it results in a superior tasting sweet treat.
Demonstrators on kayaks protested, as a huge oil rig arrived in Seattle. Royal Dutch Shell plans to use the rig for drilling in remote arctic waters off Alaska's coast.
In Speaking of Chemistry, host Sophia Cai explains that EPS actually can be recycled, but the prohibitive costs have prompted cities to ban the pesky product instead.
Take a ride in the Toyota Mirai, the world's first mass-market, hydrogen-powered all-electric car named after the Japanese word for "future." Is this the car that will put an end to Tesla's electric vehicle dominance?
State regulators in North Carolina say private wells near some of Duke Energy's coal ash pits are contaminated. The utility says it will provide drinking water for residents notified by the state.
National Institutes of Health Director Dr. Francis Collins tells CNNMoney's Cristina Alesci about the NIH's declining budget and how China is now ahead of the U.S. in R&D.