Write a paragraph in not more than 150 words on the topic given below: Human activities have been affecting the environment for thousands of years, from the time of our earliest ancestors. Write a paragraph in not more than 150 words on the negative impact of humans on the environment. it should be on the given attachments basis
Answers
Answer:
Human activity has had an effect on the environment for thousands of years, from the time of our very earliest ancestors. Since Homo sapiens first walked the earth, we have been modifying the environment around us through agriculture, travel and eventually through urbanization and commercial networks. At this point in earth’s physical history, our impact on the environment is so substantial that scientists believe “pristine nature,” or ecosystems untouched by human intervention, no longer exist.
Explanation:
1. THE POPULATION BOMB
Human overpopulation has been affecting the environment for hundreds of years and a concern for scientists since at least 1798, when Thomas Malthus first published his finding that, without significant and ongoing technological innovation, the human population would almost certainly outstrip the planet’s food supply. In 1968, this concern was again raised in Stanford professor R. Paul Ehrlich’s book “The Population Bomb
2. AGRICULTURE, DOMESTICATED ANIMALS AND GENETIC MODIFICATION
The demand to feed a growing human population has facilitated notable advances in agriculture, which was the first major human innovation to enable our survival as a species. Early agriculture allowed hunter-gatherer cultures to settle an area and cultivate their own food. This immediately impacted the environment by transplanting non-native species to new areas, and by prioritizing the cultivation of certain plants and animals over others. And more recently, advances in genetic modification have raised concerns about the environmental impact of newly developed crops
REFORESTATION
Growing populations have to be housed, which means they seek more space to build homes and cities. This often involves clearing forests to make room for urban and suburban development, as well as to provide building materials. Currently, it is estimated that 18 million acres of trees are clear-cut every year to create space for development and to be used in wood products
Through human intervention, we have altered our ecosystem forever. However, though some of these changes may be negative, humans also have the power to correct our mistakes and change our environment for the better.
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