Since our very early ancestors, human activity has influenced the environment for thousands of years. Through agriculture, travel, and eventually urbanization and commercial networks, we have modified the environment around us.
Today we have strong environmental demands because of the human population expansion and the needs of our growing species. Human activity continues to extraordinarily sabotage the planet and intimidate the survival of living things on the planet, including human life.
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Do you still wonder why destroying the planet is a huge threat to human existence? Here three of the biggest threats to human existence:
1. Climate Change
In the history of mankind, global warming presents the most serious life threat on earth. The planet is warming up and changing in a manner that goes beyond the degree many species can handle. Climate change alters or removes habitat, reduces food sources, causes drought and triggers other harmful events that cause severe weather which can even kill species that cannot withstand it. Scientists predict that climate change will cause more than one-third of earth’s animals and plants to face extinction by 2050 if we continue our current path of greenhouse gas emissions — and up to 70% by the end of the century. Such a devastating activity would irreversibly reduce biodiversity, seriously disrupt ecosystems and create huge problems for human societies throughout the world. To date, the consequences of climate change are proportionate to increases in the concentration of greenhouse gases, which is connected to carbon dioxide emissions of fossil fuels. Recent studies have shown that carbon emissions contribute to the earth’s ozone layer depletion, which in turn may cause global warming. Researchers have agreed that human activity in the biosphere has a certain influence on the wider climatic conditions.
2. Volcanoes Super
The Earth experiences a super-volcano approximately every 50,000 years. The surrounding regions affected are covered in ash, sulfur gasses are injected into the atmosphere, and a thin veil of sulfurous acid is absorbed around the world which reflects background sunlight. The pyroclastic acid can remove over 1,000 kilometers of land. The reflected sunlight will, in the future, cause daytime to be no brighter than a full moon.
3. Biodiversity Loss
Massive extinctions of countless species on the planet happens as a result of human activity. The Environment News Service reported back in 1999 that the current rate of extinction is now near 1000 times the background rate and may rise 10,000 times the background level in the next century if the present trend continues like the previous extinctions.
Bottom Line
The evidence cannot be denied. We have reached levels of destruction of biodiversity and ecosystem services that threaten our well-being. Therefore, we need to work collectively and stop destroying the planet, thus making our planet safe for human existence.