Even it is very clear from the image on how we all are getting effected by various environmental problems but let’s have a look together on some of those issues ( I can write long pages on that) but I will keep short and sweet in order for you to understand or at least give an overview on it.
1) Overpopulation: In my opinion, overpopulation is one of the causes for environmental problems. Because of higher demand for food, which is caused by higher population, farmers use dirty pesticides and fertilizers to grow vegetables or some firms give corn or antibiotics to animals in order to make them fat and grow quickly. Using fertilizers harm the earth, eating antibiotics laden food harm directly us.
2) Deforestation: We have come a long way since Industrial revolution started. Population grew, employment grew due to new technology and overall economics growth so people need more house and they needed more land to make houses. Not to mention, to have farms to keep chickens and cows and what not to feed us. This all came up with a higher environmental price which none of us kept in mind. Deforestation of Amazon is a prime example.
3) Water Pollution: It’s being said that the third world war will be fought for water. I don’t know it might be a reality one day but I do kind of agree that clean drinking water will become a rare commodity. One of the options could be desalinization process.
4) Loss of Biodiversity: Human activity is leading to the extinction of species and habitats and and loss of bio-diversity. Eco systems, which took millions of years to perfect, are in danger when any species population is decimating. Balance of natural processes like pollination is crucial to the survival of the eco-system and human activity threatens the same. Another example is the destruction of coral reefs in the various oceans, which support the rich marine life.
Maybe going back to simple harming, living a simple life with controlled population might turn out to be a solution. We need to wait and see how it goes.