Human consumption and population growth have created a global environmental crisis
In short: Researchers have highlighted how the unprecedented rise in human population and consumption during the 20th century has triggered environmental crises unlike any seen in human history. They note that humans now appropriate over 40% of the Earth's net primary productivity annually, including 35% of oceanic shelf productivity and 60% of freshwater run-off.
This pervasive influence is so significant that it has led some scientists to propose a new geological epoch called the "anthropocene." The study synthesizes various reports to show how local changes—like converting forests to farms or suburbs to cities—cumulatively impact the planet's natural values.
The analysis relies on existing scientific reports and literature rather than new primary data collection. A limitation of this overview is that it summarizes broad global trends rather than providing specific, localized data for every ecosystem.
Why it matters: Human activity has become the dominant force shaping the Earth's natural systems and biodiversity.
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Sources
- Summary by Intellect · source: Research: Sanderson et al. (2002). The Human Footprint and the Last of the Wild. BioScience.
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