Modern transportation technology lets us travel hundreds of miles to go to work, and eat food grown half-way around the world. It's made life much easier for us than it was for our ancestors. But it's caused big problems, too, and given us important choices to make for the future.
Kami menggunakan cookies untuk rekomendasi konten, pengukuran traffic, dan iklan yang dipersonalisasi. Dengan penggunaan website kami, anda sudah setuju dengan and .