La femme qui sait ce qui déclenchera la 3ème Guerre mondiale La Chine est devenue, ces dernières années, une très grosse consommatrice mondiale de ressources naturelles. Le fer, le cuivre, le pétrole, le soja, le blé… Pour soutenir son énorme croissance et les nouveaux besoins et désirs de sa population, elle sécurise ses approvisionnements et tente d’en obtenir de nouveaux. Mais elle est loin d’être la seule. En 1950, la population mondiale ne dépassait pas 2,5 milliards d'habitants. PLoS ONE : accelerating the publication of peer-reviewed science Advertisement advanced search Browse Subject Areas: Variation in Butterfly Larval Acoustics as a Strategy to Infiltrate and Exploit Host Ant Colony Resources Marco Sala, Luca Pietro Casacci, [...], Francesca Barbero A Carapace-Like Bony ‘Body Tube’ in an Early Triassic Marine Reptile and the Onset of Marine Tetrapod Predation
WMAP- Content of the Universe The key questions that need to be answered by astrophysicists are: What is really out there? And of what is it all made? Without this understanding it is impossible to come to any firm conclusions about how the universe evolved. Protons, Neutrons and Electrons: The Stuff of Life You, this computer, the air we breathe, and the distant stars are all made up of protons, neutrons and electrons. Protons and neutrons are bound together into nuclei and atoms are nuclei surrounded by a full complement of electrons. Environmental protection Academic institutions now offer courses, such as environmental studies, environmental management and environmental engineering, that teach the history and methods of environment protection. Protection of the environment is needed due to various human activities. Waste production, air pollution, and loss of biodiversity (resulting from the introduction of invasive species and species extinction) are some of the issues related to environmental protection. Environmental protection is influenced by three interwoven factors: environmental legislation, ethics and education. Each of these factors plays its part in influencing national-level environmental decisions and personal-level environmental values and behaviors. For environmental protection to become a reality, it is important for societies to develop each of these areas that, together, will inform and drive environmental decisions.
Cool Cave Facts "Leave Nothing but Footprints, Take Nothing but Pictures, Kill Nothing but Time." [ About UCG ] [ Scott's Gulf ] [ Caving Safely ] [ Cave Conservation ][ Gallery Underground ] [ The Entrance ] Skip to.... Caves in Human History Human beings have been exploring caves since the dawn of time. In human prehistory, they provided shelter, as well as a canvas on which prehistoric man could paint his desires for a good hunt. 29+ Evidences for Macroevolution: the Scientific Case for Common Descent volution, the overarching concept that unifies the biological sciences, in fact embraces a plurality of theories and hypotheses. In evolutionary debates one is apt to hear evolution roughly parceled between the terms "microevolution" and "macroevolution". Microevolution, or change beneath the species level, may be thought of as relatively small scale change in the functional and genetic constituencies of populations of organisms. That this occurs and has been observed is generally undisputed by critics of evolution. What is vigorously challenged, however, is macroevolution. Macroevolution is evolution on the "grand scale" resulting in the origin of higher taxa.
The Daily Galaxy - Great Discoveries Channel -Your Daily Dose of Awe: Science, Space, Tech Massive Earth-like planets that have both continents and oceans may be better at harboring extraterrestrial life than those that are water-only worlds. A new study gives hope for the possibility that many super-Earth planets orbiting distant stars have exposed continents rather than just water-covered surfaces. Continue reading "SuperEarths with Exposed Continents Boost Chances for Extraterrestrial Life" » In 1980 and 1981 NASA's Voyager 1 and 2 space probes passed for the first time over the planet Saturn, located 1,500 million km from the Sun. Among their numerous discoveries they observed a strange, hexagon-shaped structure in the planet's uppermost clouds surrounding its north pole.
World Mysteries - Science Mysteries The Suppression of Inconvenient Facts in Physics © Rochus Boerner 2003 This article may be freely distributed as long as it is unchanged and this notice remains. "Textbooks present science as a noble search for truth, in which progress depends on questioning established ideas. How to live like a king for very little Thor Harris is a craftsman and musician, best known for his work with Shearwater, Bill Callahan, and Swans. This post was originally published by the Austin-based multimedia publishing company, Monofonus Press, and has been reprinted with permission.
News and Events - Sweet Water Organics - Urban Fish and Vegetable Farm - Milwaukee, WI Old News Made New Q: Is your building for sale? A: The building at 2151 S. Watch these Cows literally Jump for Joy when Saved and Released from a Dairy Here's a cool story I found that you might like about some dairy cows that were saved from the slaughterhouse... There's group of people from Bergisches Land (near Cologne), who founded the association “Kuhrettung Rhein-Berg – Lebenshof für Tiere” (Cow Rescue Rhein-Berg – Sanctuary for Animals) in July 2012. The background: A family dairy farm had to give up business for economic reasons. The last ones of the herd, consisting of eleven dairy cows and 14 heifers, were facing slaughter. Only a young ox could be rescued early in time and would have had stayed there, all on his own. To prevent this, we founded an association together with the farmer, whom we won over with the idea for our project.
How pigs can compost manure on a farm scale, saving you fuel and money I'm sure many are familiar with this scenario: you're driving along in the countryside and you're suddenly hit with the overwhelming stench of manure from a farm. A dilemma ensues do you A) wind up your window to stop any more of the smell entering the car thus trapping the low level smell that's already made it in; or do you B) keep the window down, taking on the full brunt in the hope the smell will quickly pass and fresh air will blow the rest of it away. Can you smell it from here?When this happens to us (we're windows open people) we usually comment – 'That farm is wasting money'. What we're all actually smelling is a combination of Ammonia (NH3), Sulfur Dioxide (SO2), Hydrogen Sulfide (H2S) Nitric oxide (NO) and numerous volatile organic compounds (VOCs). Mixed in with those pungent gases are their odorless greenhouse bedfellows, nitrogen dioxide (NO2), Carbon dioxide (CO2) and methane (CH4).