Needing just $50,000 more dollars to help the Summit Series protect a 70-square-mile section of the Caribbean, today the Zappos CEO is offering $25,000 if people on the Internet will match him.
A map of global population density shows the tightest packed places in the world.
Watch the choreographed chaos of the moving parts of Ho Chi Minh city in this beautiful time-lapse video.
Using analytics to figure out whether development programs are working is an important new quest. The online giving organization is paying locals to collect simple stories about the impact of aid, to see if the dollars are adding up to anything.
From helping the ACLU track prejudice in NYPD tactics to changing how the UN monitors crises, the hackers behind Data Without Borders are bringing a hacker mentality to organizations working for change.
The planet’s atmosphere gets heat from the sun and then traps it. A new breakthrough from MIT lets objects do the same thing, so that we can use the sun to heat things to astronomically high temperatures and then generate power from them.