The difference between e-mail and regular mail is that computers handle e-mail, and computers never decide to come to work one day and shoot all the other computers.

As useful as websites and journals are, there's real value in books, too.

By ignoring tomorrow, we undermine today.

Even if we were to stop putting out greenhouse gases right now, we'd still face decades of warming.

Being connected to the Internet means being vulnerable to coordinated actions that can knock down walls of secrecy and shatter mechanisms of control.

Cloud computing offers individuals access to data and applications from nearly any point of access to the Internet, offers businesses a whole new way to cut costs for technical infrastructure, and offers big computer companies a potentially giant market for hardware and services.

Human civilization has been changing the Earths environment for millennia, often to our detriment. Dams, deforestation and urbanization can alter water cycles and wind patterns, occasionally triggering droughts or even creating deserts.