Browsing » May 2009

Dragonflies face uncertain future

Dragonflies face uncertain future

At least one in ten species of dragonfly and damselfly are threatened with extinction, according to the first world survey of their numbers. The figure may be an underestimate as so little is known about many species. However, the news is not all bad. The survey published in Biological Conservation is the first to assess [...]

Why solar power can help us cycle round the world

Why solar power can help us cycle round the world

In March 2007, acting on an ambitious whim, I found myself running the Marathon des Sables, a 151-mile (243km) six-day endurance race in the Sahara. The event, dubbed the “toughest footrace in the world” is notable not only for its searing temperatures but for its location in one of Earth’s most unhospitable environments. There could [...]

How to Get Started with Solar Power

How to Get Started with Solar Power

The following guide will help you start exploring the possibility of going solar at your house. Let’s first get up to speed on solar electricity basics with a few key definitions: PV Module: aka a solar panel, converts energy from the sun into direct current (DC) energy. PV Modules come in varying wattages and sizes. [...]

Page 4 of 41234