Narodowe Centrum Nauki
Geography News -- ScienceDaily
New deep reef ocean zone, the rariphotic, teeming with new fish species
Diving down below the range of scuba in the Curasub, Smithsonian deep reef explorers discovered a new world where roughly half of the fish had no names. They are calling it the rariphotic.
Intensification of agriculture and social hierarchies evolve together, study finds
Researchers analyzed the evolution of 155 Island South East Asian and Pacific societies to determine that, rather than intensification of agriculture leading to social stratification, the two evolve together. The study illustrates the way social and material factors combine to drive human cultural evolution.
Geoengineering polar glaciers to slow sea-level rise
Targeted geoengineering to preserve continental ice sheets deserves serious research and investment, argues an international team of researchers. Without intervention, by 2100 most large coastal cities will face sea levels that are more than three feet higher than they are currently.
Glacier mass loss: Past the point of no return
Researchers show in a recent study that the further melting of glaciers cannot be prevented in the current century -- even if all emissions were stopped now. However, due to the slow reaction of glaciers to climate change, our behavior has a massive impact beyond the 21st century: In the long run, five hundred meters by car with a mid-range vehicle will cost one kilogram of glacier ice.
Palm trees are spreading northward. How far will they go?
What does it take for palm trees, the unofficial trademark of tropical landscapes, to expand into northern parts of the world that have long been too cold for palm trees to survive? A new study attempts to answer this question. Researchers analyzed a broad dataset to determine global palm tree distribution in relation to temperature.
Amazon deforestation is close to tipping point
Scientists considered climate change and indiscriminate use of fire to calculate that deforestation rates ranging from 20 percent to 25 percent could turn Amazon's hydrological cycle unable to support its ecosystem.
Arctic sea ice becoming a spring hazard for North Atlantic ships
More Arctic sea ice is entering the North Atlantic Ocean than before, making it increasingly dangerous for ships to navigate those waters in late spring, according to new research.
Preventing hurricanes using air bubbles
Many people have tried to find ways of preventing hurricanes before they make landfall, resulting in the loss of human lives. Researchers believe that the answer lies in cold bubbles.
Volcanic eruption influenced Iceland's conversion to Christianity
Memories of the largest lava flood in the history of Iceland, recorded in an apocalyptic medieval poem, were used to drive the island's conversion to Christianity, new research suggests.
Wandering greenhouse gas
On the seafloor of the shallow coastal regions north of Siberia, microorganisms produce methane when they break down plant remains. If this greenhouse gas finds its way into the water, it can also become trapped in the sea ice that forms in these coastal waters.