s all the trekking companies love to tell you, climbing Kilimanjaro is like trekking from the equator to the North Pole, as you travel from sweaty cloud forest to shivering, sub-zero summit. In fact, you'll pass through four distinct ecological zones on your way to the top. The climate, the intensity of the sun, the temperature, geology and the availability of water change as you travel up the slopes, allowing different plants
