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Browse Sumner, Thomas

1-157 out of 157 article(s)
Title Type Date Words
This volcano put an end to an earthquake. Brief article Nov 26, 2016 184
San Andreas has neighbor. Brief article Nov 12, 2016 170
Deep earthquakes surprise scientists: new type of weak temblor in upper mantle detected. Brief article Nov 12, 2016 269
Extreme lightning sets records. Brief article Oct 29, 2016 223
Fossils contain earliest signs of shells: microscopic eukaryotes made armor 809 million years ago. Oct 29, 2016 447
Evidence mounts for ancient comet: impact 56 million years ago may have kicked off warming. Oct 29, 2016 343
Methane didn't keep ancient Earth warm, new simulation suggests. Brief article Oct 29, 2016 218
Atlantic ocean gets its first U.S. national monument. Brief article Oct 15, 2016 180
Anthropocene has begun, group says: controversial proposal would add epoch to geologic time scale. Oct 15, 2016 1721
Fossils claimed to be oldest on Earth: 3.7-billion-year-old mounds could signal early microbes. Brief article Oct 1, 2016 314
Storm unleashes rare seismic wave: tracking weak tremors could shed light on Earth's innards. Oct 1, 2016 453
Age of Americas' hookup debated: latest analysis dates land bridge to 3 million years ago. Sep 17, 2016 514
India's monsoon had abrupt beginning: origin of seasonal winds traced to nearly 13 million years ago. Sep 3, 2016 391
How dinosaurs crossed an ocean: land bridges might have enabled transatlantic treks. Aug 20, 2016 509
Quenching society's thirst: desalination may soon turn a corner, from rare to routine. Aug 20, 2016 2720
Underwater city built by microbes, not people. Brief article Aug 6, 2016 258
Phytoplankton shells get add test: initial calcification gains with elevated C[O.sub.2] don't persist. Aug 6, 2016 577
Bomb debris can reveal blast size. Brief article Aug 6, 2016 241
Missing "extinct" meteorite found in Sweden. Brief article Jul 23, 2016 260
Antarctic ozone hole now recovering: simulation filters out natural variation in long-term trend. Brief article Jul 23, 2016 209
Scientists up tally of deep-sea vents: hydrothermal fissures may be more common than thought. Jul 23, 2016 568
Successful helium hunt suggests element is not yet running out. Brief article Jul 23, 2016 187
Volcanic rock can quickly store C[O.sub.2]: basalt injections offer benefits over other disposal schemes. Jul 9, 2016 353
Bikini Atoll radiation levels remain high. Brief article Jul 9, 2016 197
Atlas reveals where light pollution masks Milky Way. Brief article Jul 9, 2016 218
Plate tectonics could grind to a halt: shifting crust just 1 stage in Earth's life cycle, study suggests. Jun 25, 2016 447
Tsunamis reshaped Martian landscape: signs of waves shore up evidence for past ocean on Red Planet. Jun 25, 2016 402
Young sun's flares nurtured early life: solar blasts could have helped warm Earth and seed DNA. Jun 25, 2016 340
Pleasant weather may be history. Brief article Jun 11, 2016 183
Pioneering geophysicist's theory of peak oil still debated. Book review Jun 11, 2016 507
Failure spurred current El Nino: false start's stored-up heat led to record 2015-16 event. May 28, 2016 463
Lead levels in drinking water vary seasonally. Brief article May 28, 2016 251
Buoy ballet tracks ocean motion. Brief article May 28, 2016 262
EPA underestimates methane releases: rising amounts of greenhouse gas missed by agency's methods. May 14, 2016 1189
Diamond origins debate settled: older gems, younger crystals formed in similar conditions. Apr 30, 2016 457
Sea level rise forecast doubles: by 2100, Antarctic melt could boost oceans by over a meter. Apr 30, 2016 576
Quake risk high in parts of central United States. Brief article Apr 30, 2016 206
Thinking outside the Goldilocks zone: Earth scientists reimagine the sweet spot for habitable planets. Apr 30, 2016 2056
Dome effect \dom ih-fekt\ n. Brief article Apr 16, 2016 163
Carbon dioxide shakes up geysers: gas buildup lowers water's boiling point, triggers blasts. Apr 16, 2016 543
Climate change threatens quality of French, Swiss wines. Brief article Apr 16, 2016 112
Changing climate: 10 years after An Inconvenient Truth. Apr 16, 2016 4897
Tipping point for ice sheet looms: Antarctica's past may be a guide to future melting. Apr 2, 2016 611
Old shipwrecks tell hurricane tales: frequency of Atlantic storms declined during 'Little Ice Age'. Apr 2, 2016 404
20th century sea level rose at fastest rate in millennia. Brief article Apr 2, 2016 194
Seafloor cables don't disrupt life: animals will cross, colonize high-voltage power lines. Mar 19, 2016 517
Corals need to take their vitamin C. Brief article Mar 19, 2016 144
Gulf oil spill could speed up corrosion of shipwrecks. Brief article Mar 19, 2016 139
Indian Ocean phytoplankton in danger: photosynthetic microbes are vanishing as sea surface warms. Mar 5, 2016 398
New app puts an earthquake detector in your pocket. Brief article Mar 5, 2016 189
2015 smashed heat records: warming and El Nino pushed global temperatures up. Brief article Feb 20, 2016 191
Ocean heating doubles. Brief article Feb 20, 2016 229
Shakes expose future quake hot spots: slowdown in seismic waves can reveal weak rock, fluid buildup. Feb 6, 2016 373
Earth gives up its inner secrets in retelling of old tale. Book review Feb 6, 2016 387
States ranked on climate change preparation. Brief article Jan 23, 2016 202
Exoplanets require right stuff for life: wrong makeup could nix tectonic activity needed for biology. Jan 23, 2016 486
Earlier origin for earth's center: innermost core formed soon after planet did, study finds. Jan 23, 2016 561
Arctic ice rafts traveling farther, faster: contamination risks rise as embedded pollutants spread, too. Jan 23, 2016 505
Historic climate accord approved: 195 countries pledge to limit warming to 2 degrees Celsius. Jan 9, 2016 1186
Warming culprit C[O.sub.2] has a cool side: peculiar conditions in central Antarctica have chilling effect. Jan 9, 2016 534
Gooey mantle boundary discovered: region resists movement of magma plumes, sinking plates. Jan 9, 2016 530
Arctic warms up in dark winters: thinning ice may increase heat-trapping moisture in air. Dec 26, 2015 502
Magnetic poles not about to flip: earth's weakening field is a return to normal, study finds. Dec 26, 2015 408
Origin of Earth's water questioned: deuterium levels in mantle suggest comets not the source. Dec 12, 2015 570
How to melt an ice cave. Report Nov 28, 2015 235
Counting all hurricane deaths. Report Nov 28, 2015 256
Probes unveil three hidden blemishes on moon's face. Brief article Nov 28, 2015 145
Magnitude of Great Dying questioned: land life spared in Permian mass extinction, researchers argue. Report Nov 28, 2015 464
'Vampires' sucked ancient life dry: fossils preserve evidence of predation on early eukaryotes. Report Nov 28, 2015 336
4.1-billion-year-old crystal may hold earliest signs of life. Report Nov 28, 2015 165
Geoengineering may be last hope to combat climate change. Book review Nov 28, 2015 347
Earth's (not so boring) boring billion: when the planet's oxygen was scarce, animals may have emerged under the radar. Nov 14, 2015 2665
Tsunami forecasts get speed boost: Chilean quake tests simple method for rapid warning. Oct 17, 2015 491
A jackpot beneath a volcano. Brief article Oct 3, 2015 217
Hurricane quakes may aid forecasters: seismic data on Sandy show temblors emanate from eye of storm. Oct 3, 2015 311
Carbon cuts could save U.S. farmers billions of dollars. Brief article Sep 19, 2015 155
Volcanism convicted in Permian die-off: precise dating ties Siberian Traps eruptions to mass extinction. Sep 19, 2015 497
Katrina's legacy: refining forecasts: 10 years after hurricane, storm warnings have improved. Sep 19, 2015 1205
Mystery at the Center of the Earth new research attempts to unravel the paradoxical past of the planet's magnetic field. Sep 19, 2015 2825
Virtual tornado warning. Brief article Sep 19, 2015 203
Desert dig uncovers big carbon cache: aquifers may keep huge amount of C[O.sub.2] out of the atmosphere. Sep 5, 2015 433
Nepal quake unleashed long shakes: low-frequency vibrations to blame for damage in April event. Sep 5, 2015 339
Wildfire seasons have lengthened. Brief article Aug 22, 2015 167
Climate change drove ice age die-offs: abrupt rises in temperature coincide with timing of extinctions. Aug 22, 2015 429
Carbon dating could soon mislead: flood of fossil fuel emissions may make method unreliable. Aug 22, 2015 329
Natural concrete keeps lid on volcano. Brief article Aug 8, 2015 233
Greenland's out-of-sync climate: long lag in solar activity's effect portends faster warming ahead. Aug 8, 2015 386
Most of Earth's impact craters await discovery. Brief article Jul 25, 2015 211
Crack threatens Antarctic ice shelf: Larsen C could shed massive section within next few years. Jul 25, 2015 665
No plate tectonics on super-Earths: large rocky planets have stiff outer shells, study suggests. Jul 25, 2015 311
Many groundwater basins run deficits. Brief article Jul 25, 2015 244
How injection wells start quakes: fluid disposal initiates slow slip, indirectly causes tremors. Jul 11, 2015 459
Grand Canyon's age revised, again. Brief article Jul 11, 2015 194
New volcanic islands. Brief article Jun 27, 2015 195
Global warming 'hiatus' an artifact: skewed ocean data hid recent rapid increase in temperature. Jun 27, 2015 828
Titanic typhoons are in the forecast: warmer subsurface waters may fuel bigger Pacific storms. Jun 27, 2015 356
Everest could lose most of its ice by the end of the century. Jun 27, 2015 105
Impacts may have boiled early seas: hot aftermaths of asteroid strikes altered life's evolution. Report Jun 13, 2015 584
Just 1 percent of Amazon's tree species hold half its carbon. Brief article May 30, 2015 133
Current rate of C[O.sub.2] rise unparalleled: human activity dwarfs all other increases since dino extinction. May 30, 2015 740

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