Then, as death rates fell, the population doubled to two billion in just 130 years. Since then, it has tripled to six billion in just under 70 years. In 1960, the average woman gave birth to more than five children. Today, the average is down to just over three children per woman. Talk with your parents, grandparents or other older adults about the effects of population growth they have seen as world population doubled from three billion in 1960 to six billion in 1998.
Climate change can also mean more storms, droughts, and violent weather.
You'll save 500 lbs. of carbon for each bulb you change. Save the car for times when you really need it. Every day, six tons of living coral are broken off reefs for sale in tourist shops. We share the planet with 10 to 40 million more that have not even been identified. As human populations grow, we put more and more pressure on native species.