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Geography 亚博棋牌平台
October 28, 2020

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Leaving More Big Fish in the Sea Reduces Carbon Dioxide Emissions

Leaving more big fish -- like tuna, sharks, mackerel and swordfish -- in the sea reduces the amount of carbon dioxide released into the Earth's atmosphere. This is because when a fish dies in the ...

Australian Scientists Discover 500-Meter-Tall Coral Reef in the Great Barrier Reef

Scientists have discovered a massive detached coral reef in the Great Barrier Reef, measuring more than 500 meters high -- taller than the Empire ...

Post-Wildfire Hazards: Toward an Understanding of When and How Slope Failure May Occur

Across the western US, severe wildfires fueled by tinder-dry vegetation have already burned more than 3.2 million hectares (8 million acres) -- an ...

Beaches Can Survive Sea-Level Rises as Long as They Have Space to Move

An international team of coastal scientists has dismissed suggestions that half the world's beaches could become extinct over the course of the 21st ...
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Irregular Appearances of Glacial and Interglacial Climate States

A researcher has now discovered that the irregular appearance of interglacials has been more frequent than previously thought. His study makes a significant contribution to our understanding of ...

Metal Deposits from Chinese Coal Plants End Up in the Pacific Ocean

Emissions from coal-fired power plants in China are fertilizing the North Pacific Ocean with a metal nutrient important for marine life, according to new findings from a research team. The ...

Coastal Permafrost More Susceptible to Climate Change Than Previously Thought

Research has found permafrost to be mostly absent throughout the shallow seafloor along a coastal field site in northeastern Alaska. That means carbon can be released from coastline sources much more ...

Ancient Maya Built Sophisticated Water Filters

Ancient Maya in the once-bustling city of Tikal built sophisticated water filters using natural materials they imported from miles away, according to new research. A multidisciplinary team of ...

Simple Actions Can Help People Survive Landslides

Simple actions can dramatically improve a person's chances of surviving a landslide, according to records from 38 landslides in the US and around the world. People who survived landslides tended ...

Ice Loss Likely to Continue in Antarctica, Even If Climate Change Is Brought Under Control, Study Finds

A new study has revealed that ice loss in Antarctica persisted for many centuries after it was initiated and is expected to ...

Genome Sequencing Shows Climate Barrier to Spread of Africanized Bees

Since the 1950s, 'Africanized' honeybees have spread north and south across the Americas until apparently coming to a halt in California and northern Argentina. Now genome sequencing of ...

Management of Exploited Transboundary Fish Stocks Requires International Cooperation

Marine fish species are migratory in nature and not respectful of human-made territorial boundaries, which represents a challenge for fisheries management as policies tend to focus at the national ...

New Evidence for Geologically Recent Earthquakes Near Portland, Oregon Metro Area

A paleoseismic trench dug across the Gales Creek fault, located about 35 kilometers (roughly 22 miles) west of Portland, Oregon, documents evidence for three surface-rupturing earthquakes that took ...

Lost and Found: Geologists 'Resurrect' Missing Tectonic Plate

A team of geologists believes they have found the lost plate known as Resurrection in northern Canada by using existing mantle tomography ...

Microbial Diversity Below Seafloor Is as Rich as on Earth's Surface

For the first time, researchers have mapped the biological diversity of marine sediment, one of Earth's largest global biomes. The research team discovered that microbial diversity in the dark, ...

Depths of the Weddell Sea Are Warming Five Times Faster Than Elsewhere

Over the past three decades, the depths of the Antarctic Weddell Sea have warmed five times faster than the rest of the ocean at depths exceeding 2,000 ...

Declines in Shellfish Species on Rocky Seashores Match Climate-Driven Changes

Mussels, barnacles, and snails are declining in the Gulf of Maine, according to a new article by biologists. Their 20-year dataset reveals that the populations' steady dwindling matches up with ...

Tropical Cyclones Moving Faster in Recent Decades

Tropical cyclones, regionally known as hurricanes or typhoons, have been moving across ocean basins faster since 1982, according to a new ...

Glimpse Deep Into Earth's Crust Finds Heat Source That May Stabilize Continents

Rocks from the Rio Grande continental rift have provided a rare snapshot of active geology deep inside Earth's crust, revealing new evidence for how continents remain stable over billions of ...

Oldest Securely Dated Evidence for a River Flowing Through the Thar Desert, Western India

Using luminescence dating of ancient river sediments, a new study presents evidence for river activity at Nal Quarry in the central Thar Desert starting from approx. 173 thousand years ago. These ...

Driver of the Largest Mass Extinction in the History of the Earth Identified

252 million years ago, at the transition from the Permian to the Triassic epoch, most of the life forms existing on Earth became extinct. Using latest analytical methods and detailed model ...

A Renewable Solution to Keep Cool in a Warming World

Month-after-month, year-after-year, the world continues to experience record high temperatures. In response to this and exacerbated by a growing global population, it is expected that ...

Odors as Navigational Cues for Pigeons

Volatile organic compounds identified that can be used for olfactory navigation by homing ...

Early-Arriving Endangered Chinook Salmon Take the Brunt of Sea Lion Predation

A new study found that sea lions have the largest negative effect on early-arriving endangered Chinook salmon in the lower Columbia ...

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