Planet Earth Archive
11 June 2014, 05:55 AM ET
Are renewables a better solution than nuclear for global warming?
11 June 2014, 12:05 AM ET
“Earth science” is a broad term that encompasses four main branches of study — geology, meteorology, oceanography and astronomy — each of which is further broken down into more specialized fields.
10 June 2014, 04:33 PM ET
Though it's starting to feel like summer in the Great Lakes region, with temperatures soaring into the 80s, icebergs are still loitering in Lake Superior — a reminder of an especially harsh winter.
10 June 2014, 03:03 PM ET
A brutal winter left Lake Superior with some icy souvenirs. Though temperatures are rising in the Great Lakes region with the onset of summer, icebergs were still floating in the big body of water as of early June.
10 June 2014, 02:12 PM ET
Where are U.S. tornadoes most common? New maps of twisters by latitude and longitude show clearly.
10 June 2014, 12:45 PM ET
Despite booming adult populations, young lobster numbers are nearly half of what they were in 2007.
10 June 2014, 11:52 AM ET
Chimpanzees can outsmart humans in simple strategy games because they have evolved in highly competitive cultures.
10 June 2014, 04:30 AM ET
Various explanations for why we don’t see aliens have been proposed but with every new discovery of a potentially habitable planet, the Fermi Paradox becomes increasingly mysterious.
09 June 2014, 09:31 PM ET
A new astronaut photograph shows a snapshot of the island of Manhattan and its surrounding boroughs from space. Skyscrapers in Midtown and the Financial District cast shadows, and even Central Park's playing fields can be seen.
09 June 2014, 06:40 PM ET
Why is the sky blue? The light coming from the sun is made of many colors, each of which has a different wavelength.
09 June 2014, 03:01 PM ET
Volcanoes under the ice in Antarctica appear to contribute to the melting of glaciers, potentially lubricating the overlying ice and contributing to the glacier's speed of flow.
09 June 2014, 02:45 PM ET
To study debris dynamics from volcanic blasts, scientists tracked ping pong and tennis balls sent flying during controlled explosions. The sporting goods make surprisingly good proxies for silicate lava bombs (fiery boulders of magma).
09 June 2014, 01:21 PM ET
To gain a better understanding of unique maar volcanic eruptions, a group of researchers in New York is blowing up rock piles, for science.
09 June 2014, 02:42 AM ET
Clearly, our ability to produce larger quantities of fruit and vegetables is not the only guarantee for global food security. We need to start minimising the amount of food that is produced and then lost.
06 June 2014, 03:32 PM ET
A late fall warm spell in Australia extends a period of record warmth influenced by global warming.
06 June 2014, 02:47 PM ET
A new satellite image reveals the grabens of Canyonlands National Park in Utah. These long valleys are caused by a moving layer of salt far below the surface.
06 June 2014, 12:10 AM ET
The East Australian Current plays a crucial role in Australia's east-coast climate and ecosystems. As it is World Oceans Day this weekend (June 8), it’s a good time to have a closer look at the big current in our own backyard and what it does.
05 June 2014, 07:25 PM ET
San Francisco-based company Carbon Lighthouse discusses how they take money-guzzling/power-hungry buildings and turn them into energy efficient/cost-saving structures.
05 June 2014, 02:25 PM ET
In the prairies of southern Saskatchewan, Canada, scientists discovered evidence of a 66-million-year-old forest fire locked in stone. Fossilized plants show that forests bounced back from wildfires much like they do today.
05 June 2014, 02:20 PM ET
Scientists recently discovered evidence of a dinosaur-era forest fire locked in stone in southern Saskatchewan. Plant fossils found in the region revealed that forests rebounded from fires much like they do today.
05 June 2014, 02:13 PM ET
The chance of an El Niño developing this year continues to rise. NOAA's Climate Prediction Center puts the odds at a 70 percent likelihood of an El Niño this month and 80 percent during the fall and winter.
05 June 2014, 11:35 AM ET
A satellite photograph of tule fog filling California's Central Valley illustrates a phenomenon that is becoming increasingly rare. Recent research suggests fruit and nut farmers may need to adjust to the loss of this thick winter fog.
04 June 2014, 06:28 PM ET
The planet's oceans are gradually becoming more acidic, in turn threatening the life and ecosystems that call the seas home. Yet the technology for measuring ocean acidification is inadequate or expensive, scientists say.
04 June 2014, 04:32 PM ET
A little bit of a real-world science gets a brief flash on-screen during "Godzilla."
04 June 2014, 11:59 AM ET
A new map of sea surface temperatures shows the ocean-heat engine that drives the formation of hurricanes, typhoons and tropical cyclones. Forecasters are predicting a relatively quiet 2014 Atlantic hurricane season.
04 June 2014, 10:16 AM ET
In 1947, a crash landing left wreckage from a U.S. Army plane frozen in time on northwest Greenland's remote ice sheets. A new image, released by NASA's Earth Observatory, shows the remains of the B-29 Superfortress plane, named Kee Bird.
04 June 2014, 08:43 AM ET
Deep-sea fish capture more than a million tons of carbon dioxide from U.K. and Irish surface waters each year, a new study found.
03 June 2014, 07:01 PM ET
Three newly discovered man-made gases join the growing list of chemicals that can destroy Earth's protective ozone layer, but these compounds likely pose little threat to ozone.
03 June 2014, 06:28 PM ET
Here's what you need to know about the new EPA power plant emissions proposal.
03 June 2014, 04:15 PM ET
An antimicrobial substance in pine tree bark may have a use for treating skin cancer.
03 June 2014, 04:01 PM ET
Obama aims to slash CO2 pollution from the electric power sector by 30 percent below 2005 levels by 2030.
03 June 2014, 12:20 PM ET
A dust storm, or haboob, hit Tehran on June 2, 2014, killing at least four people and knocking out power to more than 50,000 homes and businesses. Photography student Alireza Naseri took a stunning picture of the storm from his apartment.