what are the threads to the environment?
please give brief answer in a paragraph.
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1. Climate change
Heat waves, droughts, flooding, storms, decrease in crop yields, and rising sea levels are just some of the effects we’re seeing from climate change. Not fun.
2. Deforestation
Deforestation is one cause of climate change. But beyond that, it’s also responsible for the depletion of oxygen in the atmosphere and the displacement of wildlife.
3. Pollution
A polluted beach in Lima, Peru | Flickr: Geraint Rowland
According to the World Health Organization, “air pollution is now the world’s largest single environmental health risk.” That’s because it’s responsible for approximately 3.7 million deaths a year (according to a 2012 study).
There are other types of pollution too, like waste. My colleague Natalie Prolman notes that, “cities currently generate approximately 1.3 billion tonnes of solid waste per year….and with the current trends in urbanization, this number will likely grow to 2.2 billion tonnes per year by 2025 - an increase of 70 percent.” Pollution poisons soil and waterways, kills plants, and harms humans and animals. Plus, it’s just gross.
4. Loss of biodiversity
As a result of overfishing, deforestation, habitat destruction, pollution, and other factors, more plants and animals are nearing extinction. Even the smallest disruption to an eco-system can have a domino effect that affects us all. Protecting bio-diversity is as much about protecting the cute endangered species you did your 6th grade report on as it is about self-preservation.
5. Oceanic dead zones
Dead zones occur in the ocean when oxygen levels in the water fall until marine life cannot survive. Typically they pop up near heavily populated coastal regions like North America’s Gulf Coast where there are lots of chemicals in the water. If you’re a fan of seafood, fingers crossed your dinner didn’t come from one of these deadly zones, because even if marine life can still be sustained, the chemicals can get into the food you’re eating.
6. Overpopulation
As the human population continues to grow, more stress is put on the environment and more resources are lost. No, I’m not talking about food- we actually have more than enough food to feed everybody. But as the population grows, more wilderness is taken over to make room for infrastructure, more “stuff” is produced, and more pollution is created.
7. Over-fishing
Fishing in Alaska, USA | Flickr: Nick Rahaim
For far too long we’ve taken the ocean for granted, discarding unwanted waste there and taking from it without considering the repercussions. Now, it’s pay day. Because of irresponsible fishing, many species of fish are on the brink of extinction. And as we’ve already covered, a loss in biodiversity means trouble for us all.
Heat waves, droughts, flooding, storms, decrease in crop yields, and rising sea levels are just some of the effects we’re seeing from climate change. Not fun.
2. Deforestation
Deforestation is one cause of climate change. But beyond that, it’s also responsible for the depletion of oxygen in the atmosphere and the displacement of wildlife.
3. Pollution
A polluted beach in Lima, Peru | Flickr: Geraint Rowland
According to the World Health Organization, “air pollution is now the world’s largest single environmental health risk.” That’s because it’s responsible for approximately 3.7 million deaths a year (according to a 2012 study).
There are other types of pollution too, like waste. My colleague Natalie Prolman notes that, “cities currently generate approximately 1.3 billion tonnes of solid waste per year….and with the current trends in urbanization, this number will likely grow to 2.2 billion tonnes per year by 2025 - an increase of 70 percent.” Pollution poisons soil and waterways, kills plants, and harms humans and animals. Plus, it’s just gross.
4. Loss of biodiversity
As a result of overfishing, deforestation, habitat destruction, pollution, and other factors, more plants and animals are nearing extinction. Even the smallest disruption to an eco-system can have a domino effect that affects us all. Protecting bio-diversity is as much about protecting the cute endangered species you did your 6th grade report on as it is about self-preservation.
5. Oceanic dead zones
Dead zones occur in the ocean when oxygen levels in the water fall until marine life cannot survive. Typically they pop up near heavily populated coastal regions like North America’s Gulf Coast where there are lots of chemicals in the water. If you’re a fan of seafood, fingers crossed your dinner didn’t come from one of these deadly zones, because even if marine life can still be sustained, the chemicals can get into the food you’re eating.
6. Overpopulation
As the human population continues to grow, more stress is put on the environment and more resources are lost. No, I’m not talking about food- we actually have more than enough food to feed everybody. But as the population grows, more wilderness is taken over to make room for infrastructure, more “stuff” is produced, and more pollution is created.
7. Over-fishing
Fishing in Alaska, USA | Flickr: Nick Rahaim
For far too long we’ve taken the ocean for granted, discarding unwanted waste there and taking from it without considering the repercussions. Now, it’s pay day. Because of irresponsible fishing, many species of fish are on the brink of extinction. And as we’ve already covered, a loss in biodiversity means trouble for us all.
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