Crossing Boundaries

Dreamweaver 8 tutorial

"Have you ever wondered what the tree population and density of the United States looks like? This amazing map shows just that. Created by Josef Kellndorfer and Wayne Walker of Woods Hole Research Center in conjunction with the U. S. Geological Survey Science Center's Earth Resources Observation and Science (EROS) Center and the US Forest Service, the map was generated based on a series of data sources including readings collected from space-based radars, satellite sensors, computer models, and simply counting trees the old-fashioned way. The map was created for NASA to help determine how the world's forests have the potential to store more carbon in the future."

This interactive map provides layers for population density, mortality risk, and tectonic plates lines.The quakes can be filtered by magnitude and timeline.

"The most interesting finding from the study was that roads impact biodiversity independently of deforestation, via more cryptic forms of disturbance. These disturbances include reduction in habitat quality, increased risk of forest fires, and, perhaps most importantly, the facilitation of human access to undisturbed lands, increasing the potential for illegal logging, poaching, and colonization. "

The National Biological Information Infrastructure (NBII) is a broad, collaborative program to provide increased access to data and information on the nation's biological resources. The NBII links diverse, high-quality biological databases, information products, and analytical tools

Taking Root tells the story of Kenyan Nobel Peace Prize Laureate Wangari Maathai whose simple act of planting trees grew into a nationwide movement to safeguard the environment, protect human rights, and defend democracy-a movement for which this charismatic woman became an iconic inspiration.

Kenya's high-elevation forests are the source for most of the water on which the drought-plagued nation depends. Now, after decades of government-abetted abuse of these regions, a new conservation strategy of working with local communities is showing signs of success.

"Ocean Tracks provides access to authentic data collected by migrating marine animals, drifting buoys, and satellites, along with tools that allow you to display and analyze these data to investigate current and important scientific questions about animal interactions with the ocean environment. "

Scientists say they are closer to knowing how, or rather why, the zebra got its stripes. It's an answer that would impress even Rudyard Kipling. Copyright © 2015 NPR. For personal, noncommercial use only. See Terms of Use. For other uses, prior permission required.

Includes an interactive infographic showing dots for 4,529 species of mammal, bird, and amphibian at risk of extinction on the International Union for Conservation of Nature's Red List. Mousing over the dots shows details of individual species.