The EARTH archive
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1236 articles · Page 34 of 52
September 25, 2015
Few names are as evocative as Jacques Cousteau. The sunlight-infused blue glow of the marine subsurface, the endless array of otherworldly …
September 23, 2015
Ask a geologist when the Paleogene Period started and odds are very good the answer will be about 65.5 million years ago. Ask about the …
September 23, 2015
David B. Williams One side effect of the discovery and popularization of dinosaurs in the latter half of the 19th century was their introduction …
September 21, 2015
From Antarctica to the Arctic; from polar caps, permafrost and glaciers to ocean-rafted sea ice; and from burly bears to cold-loving microbes, …
September 21, 2015
After two decades of controversy surrounding the origins of Kennewick Man — a 9,000-year-old skeleton found on the banks of the Columbia River in …
September 21, 2015
The asteroid that wiped out the remaining dinosaurs — save for the avian variety — 66 million years ago was roughly 10 kilometers wide. Long …
September 21, 2015
For decades, people living along Egypt’s Red Sea coast have reported hearing loud blasts accompanying the small earthquakes that regularly jolt …
September 21, 2015
Forest fires across the Amazon Basin — many of which are set intentionally to clear land for human use — burn thousands of square kilometers each …
September 18, 2015
U.S. Oil & Petroleum Imports (million of barrels per day) ' Oil and petroleum imports data are preliminary numbers taken from the American …
September 18, 2015
Emily K. Schnebele, a mineral commodity specialist for the U.S. Geological Survey, compiled the following information on iodine, which is …
September 17, 2015
The first step in planning a community or backyard garden should always be to get the soil tested, getting a read on not only pH and nutrient …
September 17, 2015
If it has to do with frozen water, Erin Pettit has probably studied it. As an associate professor of geology and geophysics at the University of …
September 4, 2015
Mountains typically get steeper the higher you climb. The European Alps are an exception: Beginning at altitudes between about 1,500 and 2,000 …
September 4, 2015
Americans are using less water today than they have at any time since 1970, according to a report by the U.S. Geological Survey (USGS), which has …
September 3, 2015
The closest major airports to Hells Canyon are Missoula, Mont., Boise, Idaho, and Spokane, Wash. If you book a multiday trip with a reputable …
September 3, 2015
In the 1940s, the state of Idaho decided that the Salmon River would be left to flow freely while the Snake would be developed for hydroelectric …
September 2, 2015
Why would you ever visit a place called Hells Canyon? Especially given how hard it is to get there: Few roads and only steep, difficult trails …
September 2, 2015
What makes a volcano erupt? Over the years, scientists have proposed a litany of potential triggers, but there’s always room for one more. With …
September 2, 2015
Scientists have known since the late 1960s that injecting fluids underground can cause earthquakes if those fluids find their way into slip-prone …
September 1, 2015
A victory for peace and science Science trumps all in Antarctica. For the past 50 years, Antarctica has remained a military-free, globally shared …
September 1, 2015
When Americans think of domestic oil, they likely think of Texas, Alaska or California — vast fields of towering derricks and quietly dipping oil …
September 1, 2015
Each year in late September to early October, atmospheric scientists watch with anticipation as ozone concentrations over Antarctica drop, …
August 27, 2015
At least since satellite observations began four decades ago, climbing temperatures have chipped away at Arctic sea ice, causing earlier spring …
August 25, 2015
If you have geologist friends, you may have run across some humorous world maps on social media lately. These maps have garnered lots of …
