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Paul Heltzel
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By Paul Heltzel
NASA Develops Volcano-Exploring Robots
The small bots will help researchers at NASA's Jet Propulsion Laboratory map fissures and learn more about how eruptions occur.
Earth & Conservation
By Paul Heltzel
Fracking Spills Are Far More Widespread Than We Thought
A 10-year study shows far more spills than had previously been reported, about half occurring when moving and storing fluids in pipelines.
Energy
By Paul Heltzel
Seawater Could Provide an 'Endless' Source of Uranium for Nuclear Plants
Stanford researchers have developed a new method of extracting trace amounts of uranium from seawater instead of mining.
Space & Innovation
By Paul Heltzel
Canada's Glaciers Are Melting 900 Percent Faster Since 2005
Canadian glaciers account for a huge portion of Arctic ice. As the planet warms, meltwater is eating away at them at an astonishing rate.
Space & Innovation
By Paul Heltzel
A 'Lost Continent' Has Been Found Under the Island of Mauritius
Grains of a three-billion-year-old mineral found in rock point to a hidden continent left over by the break-up of the supercontinent, Gondwana, about 200 million years ago.
Earth & Conservation
By Paul Heltzel
We've Bred the Taste Out of Tomatoes. Here's How to Bring It Back.
A Florida scientist is on a mission to restore flavor to grocery store tomatoes.
Climate
By Paul Heltzel
A Massive Renewable Energy Push Is Needed to Avoid Catastrophic Climate Change
Keeping the planet from warming beyond 2 degrees Celsius will require a global effort to rely on renewable energy.
Gadgets
By Paul Heltzel
Electronic Junk Is Piling Up in Asia at an Alarming Rate
The amount of e-waste in Asia has jumped by nearly two-thirds in five years, raising hazards for the environment and for the people dismantling discarded gadgets.
Earth & Conservation
By Paul Heltzel
2017 Could Be the Year California’s Drought Comes to an End
Monster winter storms have lead to mudslides and flooding — but could also mean the end of a statewide drought that's heading into its sixth year.
Earth & Conservation
By Paul Heltzel
Sound Waves Give Tropical Trees a Checkup
Measuring how fast sound travels through a tree trunk can reveal whether it's rotting from the inside.
History
By Paul Heltzel
Europe's Oldest Living Tree Discovered
In northern Greece, a Bosnian pine has been dated at more than 1,000 years.
Earth & Conservation
By Paul Heltzel
Lava Meets the Ocean Near Hawaii Volcano
Lava meet ocean: Ocean, this is lava.
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