"Although we seldom think about them this way, most American communities as they exist today were built for the spry and mobile. We've constructed millions of multi-story, single-family homes where the master bedroom is on the second floor, where the lawn outside requires weekly upkeep, where the mailbox is a stroll away. We've designed neighborhoods where everyday errands require a driver's license. We've planned whole cities where, if you don't have a car, it's not particularly easy to walk anywhere — especially not if you move gingerly.
This reality has been a fine one for a younger country. Those multi-story, single-family homes with broad lawns were great for Baby Boomers when they had young families. And car-dependent suburbs have been fine for residents with the means and mobility to drive everywhere. But as the Baby Boomers whose preferences drove a lot of these trends continue to age, it's becoming increasingly clear that the housing and communities we've built won't work very well for the old."
If you want to understand the Islamic State, better known as ISIS, the first thing you have to know about them is that they are not crazy. Murderous adherents to a violent medieval ideology, sure. But not insane.
"It took the folks at Google to upgrade these choppy visual sequences from crude flip-book quality to true video footage. With the help of massive amounts of computer muscle, they have scrubbed away cloud cover, filled in missing pixels, digitally stitched puzzle-piece pictures together, until the growing, thriving, sometimes dying planet is revealed in all its dynamic churn. The images are striking not just because of their vast sweep of geography and time but also because of their staggering detail."
"Have you heard of Alexander von Humboldt? Not likely. The geologist turned geographer and South American explorer was a bit of an 18th century super scientist, traveling over 24,000 miles to understand the relationship between nature and habitat. George Mehler details Humboldt’s major accomplishments and why we should care about them today. See this TED ED lesson plan that accompanies the video."
"Henry Monterroso is a foreigner in his own country. Raised in California from the age of 5, he was deported to Mexico in 2011 and found himself in a land he barely knew. But the 34-year-old now supervises five employees amid rows of small cubicles who spend eight hours a day dialing numbers across the United States. He is among thousands of deported Mexicans who are finding refuge in call centers in Tijuana and other border cities. In perfect English — some hardly speak Spanish — they converse with American consumers who buy gadgets, have questions about warrantees or complain about overdue deliveries."
"In the years after the attacks of September 11, debates about how the United States should respond to the threat of terrorism remain of central importance. The death of Osama bin Laden, the rise of 'homegrown' terrorists, and the use of drones to kill suspected terrorists pose new questions and challenges for policy makers and citizens. Responding to Terrorism: Challenges for Democracy helps students consider the issues surrounding the 9.11.01 attacks and the U.S. response to terrorism in a constructive context that promotes dialogue about future policy directions."
"While people often say that borders aren’t visible from space, the line between Kazakhstan and China could not be more clear in this satellite image. Acquired by the Landsat 8 satellite on September 9, 2013, the image shows northwestern China around the city of Qoqek and far eastern Kazakhstan near Lake Balqash.
The border between the two countries is defined by land-use policies. In China, land use is intense. Only 11.62 percent of China’s land is arable. Pressed by a need to produce food for 1.3 billion people, China farms just about any land that can be sustained for agriculture. Fields are dark green in contrast to the surrounding arid landscape, a sign that the agriculture is irrigated. As of 2006, about 65 percent of China’s fresh water was used for agriculture, irrigating 629,000 square kilometers (243,000 square miles) of farmland, an area slightly smaller than the state of Texas.
The story is quite different in Kazakhstan. Here, large industrial-sized farms dominate, an artifact of Soviet-era agriculture. While agriculture is an important sector in the Kazakh economy, eastern Kazakhstan is a minor growing area. Only 0.03 percent of Kazakhstan’s land is devoted to permanent agriculture, with 20,660 square kilometers being irrigated. The land along the Chinese border is minimally used, though rectangular shapes show that farming does occur in the region. Much of the agriculture in this region is rain-fed, so the fields are tan much like the surrounding natural landscape."
Tags: remote sensing, land use, environment, geospatial, environment modify, food, agriculture, agricultural land change.
"It's perfectly human to grapple with questions, like 'Where do we come from?' and 'How do I live a life of meaning?' These existential questions are central to the five major world religions -- and that's not all that connects these faiths. John Bellaimey explains the intertwined histories and cultures of Hinduism, Judaism, Buddhism, Christianity and Islam."
"For 75 years, Finland's expectant mothers have been given a box by the state. It's like a starter kit of clothes, sheets and toys that can even be used as a bed. And some say it helped Finland achieve one of the world's lowest infant mortality rates."
"Weak and failing states pose a challenge to the international community. In today’s world, with its highly globalized economy, information systems and interlaced security, pressures on one fragile state can have serious repercussions not only for that state and its people, but also for its neighbors and other states halfway across the globe. The Fragile States Index (FSI), produced by The Fund for Peace, is a critical tool in highlighting not only the normal pressures that all states experience, but also in identifying when those pressures are pushing a state towards the brink of failure."
In this image-filled talk, Yann Arthus-Bertrand displays his three most recent projects on humanity and our habitat -- stunning aerial photographs in his series "The Earth From Above," personal interviews from around the globe featured in his web project "6 billion Others," and his soon-to-be-released movie, "Home," which documents human impact on the environment through breathtaking video.