background preloader

Visualizing How A Population Grows To 7 Billion

Visualizing How A Population Grows To 7 Billion
7 Billion: How Did We Get So Big So Fast? Watch as global population explodes from 300 million to 7 billion. Sometime Monday, the world will have more humans than ever: 7 billion, according to the U.N. The U.N. estimates that the world's population will pass the 7 billion mark on Monday. Much of that growth has happened in Asia — in India and China. Those two countries have been among the world's most populous for centuries. Due in part to that region's extreme poverty, infant mortality rates are high and access to family planning is low. As NPR's Adam Cole reports, it was just over two centuries ago that the global population was 1 billion — in 1804. As higher standards of living and better health care are reaching more parts of the world, the rates of fertility — and population growth — have started to slow down, though the population will continue to grow for the foreseeable future. Related:  Humanitat

Virtual Water - Discover how much WATER we EAT everyday The good news is that each one of us can also make the world a little more water secure, ready to face the needs of our peak population future. How? The answer lies in our shopping baskets. The amount of meat in our diet is crucial! The average daily water consumption of a meat-eating person is 5000 litres of water per day. The type of meat we consume is crucial! The food we waste is crucial! So, do not forget: one meat-free-day a week choose meat raised on grass do not waste food Nature's laws may vary across the Universe ( -- One of the laws of nature may vary across the Universe, according to a study published today in the journal Physical Review Letters. One of the most cherished principles in science - the constancy of physics - may not be true, according to research carried out at the University of New South Wales (UNSW), Swinburne University of Technology and the University of Cambridge. The study found that one of the four known fundamental forces, electromagnetism - measured by the so-called fine-structure constant and denoted by the symbol ‘alpha' - seems to vary across the Universe. The first hints that alpha might not be constant came a decade ago when Professor John Webb, Professor Victor Flambaum, and other colleagues at UNSW and elsewhere, analysed observations from the Keck Observatory, in Hawaii. "The results astonished us," said Professor Webb. "Another currently popular idea is that many universes exist, each having its own set of physical laws," Dr Murphy said.

Evolución de la Población 3. Evolución de la población. 3.1 Evolución histórica de la población. A lo largo de la historia la evolución de la población no ha llevado siempre el mismo ritmo de crecimiento que hay actualmente (Gráfico 3). Una vez establecidos estos cambios, la población se estanca, creciendo con altibajos y muy dependiente de las catástrofes naturales y humanas como epidemias, malas cosechas, guerras, etc. No es hasta el inicio de la edad moderna cuando la población comienza un ligero aumento, llegando a los seiscientos millones en el año 1600, siendo aun un crecimiento catastrófico. El segundo momento histórico importante para el crecimiento de la población lo encontramos durante la Revolución Industrial. Gráfico 3.

Le budget métropolitain Le conseil d'agglomération a adopté, le 18 décembre, le budget 2015 de Rennes Métropole. Ce budget historique de 829,7 M€ est marqué par d'importants investissements, notamment pour la ligne b, et par le passage en métropole. Le détail en infographies. Le budget 2015 a été adopté par le conseil communautaire le jeudi 18 décembre 2014. 463,88 M€ d'investissements Le principal fait marquant de ce budget est l'investissement. Les dépenses et les recettes en 2015

Adventures in Depression Some people have a legitimate reason to feel depressed, but not me. I just woke up one day feeling sad and helpless for absolutely no reason. It's disappointing to feel sad for no reason. Sadness can be almost pleasantly indulgent when you have a way to justify it - you can listen to sad music and imagine yourself as the protagonist in a dramatic movie. But my sadness didn't have a purpose. Essentially, I was being robbed of my right to feel self pity, which is the only redeeming part of sadness. And for a little bit, that was a good enough reason to pity myself. Standing around feeling sorry for myself was momentarily exhilarating, but I grew tired of it quickly. I tried to force myself to not be sad. But trying to use willpower to overcome the apathetic sort of sadness that accompanies depression is like a person with no arms trying to punch themselves until their hands grow back. When I couldn't will myself to not be sad, I became frustrated and angry. Which made me more sad.

El neolític | La prehistòria El Neolític va ser una època en que els homes prehistòrics van descobrir moltes coses que els ajudaren a viure millor. Anem a conèixer com va anar canviant la seva vida. Quan comença El neolític comença fa 10.000 anys abans de Crist. La vida de l’home neolític Com que eren sedentaris, vivien en cabanes, i en petits poblats. L’alimentació Els homes i les dones del Neolític, s’alimentaven principalment de les plantes que conreaven: cereals (blat, civada, sègol, ordi…) llegums (llenties, ciurons, pèsols…); encara que no van deixar de recol·lectar fruits silvestres. Sergio de la Rosa i Qamar Les seves eines. La destral: L’utilitzaven per construir cabanes i estava fet de fusta i de pedra. La falç: S’utilitzava per tallar el blat i estava fet de fusta i dents Les pales: s’utilitzava per fer forats a la terra i estava fet de fusta. Aixada: S’utilitzava per cavar la terra i estava feta de pedra i de fusta. Molins de mà: s’utilitzava per moldre el gla i estava fet de dos pedres. Raúl Pérez Boyer

What's Really Warming the World? Climate deniers blame natural factors; NASA data proves otherwise Climate scientists tend not to report climate results in whole temperatures. Instead, they talk about how the annual temperature departs from an average, or baseline. They call these departures "anomalies." The simulation results are aligned to the observations using the 1880-1910 average.

Bangkok Underwater - Alan Taylor - In Focus Heavy monsoon rains have been drenching Southeast Asia since mid-July, causing mudslides and widespread flooding. The deluge has now reached Bangkok, with rising water and associated problems affecting most of the city's 10 million residents. Prime Minister Yingluck Shinawatra said that parts of the capital could be inundated by up to 1.5 meters of water and remain flooded for up to a month. Around Bangkok, the second-largest airport has closed, food prices are soaring, clean water is becoming scarce, and the country is declaring a holiday from Thursday until Monday to allow people to evacuate. Use j/k keys or ←/→ to navigate Choose: Residents evacuate from their flooded town, north of Bangkok, on October 25, 2011. Flood waters surround an industrial complex in Bangkok, Thailand, on October 20, 2011. A television news reporter speaks to a camera in a waterlogged street near the Chao Praya river in Bangkok, on October 26, 2011.

Year-by-Year World Population Estimates: 10,000 B.C. to 2007 A.D. There are numerous world population estimates out there. These estimates can differ greatly from one to the next and some are more thorough than others. Finding estimates for the world’s population in the past 50 years is easy. The most “complete” set of estimates is provided by Atlas of World Population History (McEvedy and Jones 1978). Another good set of estimates comes from Population Growth and Land Use (Clark 1968). The League of Nations, the UN, and the US Census Bureau provide nearly complete estimates for each year in the 20th Century. Certain years in the estimates vary greatly between the different sets. Again, being accurate about population estimates from 2,000 years ago is impossible, but by taking all sets of estimates, creating an interpolation to fill in the gaps, and averaging all the estimates, we can get a more complete picture provided by the professionals. The following chart is comprised of 12 sets of estimates. Filling in the Gaps ). The Caveats Bibliography . U.S.