For democratic elections to be fair, voting districts must have similar sizes. When populations shift, districts need to be redistributed -- a complex and, in many countries, controversial task when political parties attempt to influence redistricting. Mathematicians at the Technical University of Munich (TUM) have now developed a method that allows the efficient calculation of optimally sized voting districts.
A spectacular six-month Icelandic lava field eruption could provide the crucial key for scientists to unlock the role aerosols play in climate change, through their interactions with clouds.
Rain or shine has new meaning thanks to an innovative, inexpensive and simple tactic developed by researchers at FAU that will really change how people think about watering their lawns. The tactic? A straightforward road sign.
Three million measurement points in one square kilometer: Prof. Xiaoxiang Zhu and her team have set a world record in information retrieval from satellite data. Thanks to new algorithms, the researchers from the Technical University of Munich (TUM) succeeded in making four-dimensional point clouds of Berlin, Las Vegas, Paris and Washington, D.C. from images stacks of the TerraSAR-X radar satellite. Next the scientists plan to create four-dimensional models of all cities in the world.
Scientists believe they have discovered the reason behind mysterious changes to the climate that saw temperatures fluctuate by up to 15°C within just a few decades during the ice age periods.
A new study analyzed crystals of the mineral zircon -- zirconium silicate -- in magma from an eruption in the Taupo Volcanic Zone in New Zealand about 700 years ago to determine the magma's history. This may begin to help scientists recognize when a volcano is heading toward an eruptive phase.
Researchers at Tulane University have developed a subsidence map of coastal Louisiana, putting the rate at which this region is sinking at just over one third of an inch per year.
The hundreds of hydroelectric dams proposed for the Amazon River Basin will cause massive environmental damage all the way from the eastern slopes of the Andes to the Atlantic Ocean. About one-third of the 428 dams are built or are under construction. The environmental effects will ramify throughout the river system and beyond. The largest river system on Earth, the Amazon River and its watershed cover 6.1 million square kilometers and includes nine countries.
Some of the world's plants are using 'last-stand' strategies to survive rather than thrive as global climate change gathers apace. Ecologists assessed plant strategies in less suitable climates by tapping into big data collated from 16 different countries in 3 different continents over the past 50 years.
Hundreds of built and proposed hydroelectric dams may significantly harm life in and around the Amazon by trapping the flow of rich nutrients and modifying the climate from Central America to the Gulf of Mexico. These findings, published in Nature, emerge from a multidisciplinary, international collaboration of researchers from 10 universities, led by scientists at The University of Texas at Austin.