The green colour of Earth's forests is not accidental. Plants contain chlorophyll, a pigment that absorbs red and blue wavelengths of sunlight while reflecting green light. This process allows plants ...

South Africa’s efforts to combat water-greedy invasive alien trees are facing a series of critical setbacks following a 78% cut in budget to the environmental programmes charged with implementing ...

The commercial timber plantations at Newlands are of invasive alien pine trees. These spread their seeds en masse into the surrounding indigenous vegetation. Newlands Forest. Cape Town. Source – S ...