By 2050, it is likely that we will have another 25 million kilometers of paved roads on Earth -- enough to encircle the planet more than 600 times.
Roads are going everywhere. In the developing nations of Asia, for example, the total length of paved roads is expected to double by 2020.
As a near-term threat, the toll of road-building on Earth's ecosystems, biodiversity, and our planet's livability is greater even than perils such as global climate change.
Why are roads so uniquely dangerous?
Surprisingly, most people don't really understand the answer.
This two-minute video tells the story in simple yet memorable terms.
It shows the impacts of new roads from a perspective that we don't consider often enough.
Do watch the video -- it's an eye-opener.
And share it with others too.
It's not too late to make critical changes.
We all need to understand roads better, and to see how they are changing our world so irrevocably.
(Lead image (c) Richard Whitcombe/Shutterstock)