South Africa Today on MSN56m
Ground-level ozone pollution poses growing threat to planetary health
In the stratosphere, ozone acts as a protective layer. But in the troposphere, at ground level, this colorless gas is ...
Six houseplants that double as 'effective air filters' to remove toxins and chemicals
Not only are houseplants attractive in your home, but they can also absorb nasty toxins in the air. One gardening expert has ...