This Is How Much The Earth Has Changed In The Last 20 Years ─ TheRichest

Our planet has changed a lot over the past 2 decades! Subscribe for more amazing videos! ► http://bit.ly/Subscribe-to-Richest ◄

Twenty years may not seem like a long time, especially on a geological timescale. On such a scale, 20 years registers as a millisecond rather than two decades. 20 years shouldn't make any difference when we're talking about millions and billions of years of planetary evolution. However, for the first time in Earth's history, a 20-year period has accomplished what it used to take a million years to accomplish: it changed the makeup of the world. Yes, 20 years should be insignificant, and it would be if it weren't for humans. Since the industrial revolution, humans have been harvesting the world's resources like beavers on steroids, digging into all of Earth's reservoirs to excavate fuel with which to power machines to keep humankind expanding. It wasn't until a few decades ago that scientists began to examine the environmental impact of human imperialism and they found evidence that many people wish they hadn't: humans are making Earth warmer—and they're doing so at a rate that took other natural events millions of years to accomplish. In only a century, humans have caused the temperature to rise, the sea level to rise, and carbon emissions to increase. And the growth is exponential; like a snowball rolling down the hill, picking up snow and growing larger by the second, the rate keeps expanding year by year without any indication of stopping. This is why 20 years is such a big deal. In the last 20 years, the snowball is much bigger than in the previous 20, and it's flattening trees and coral, causing the ice caps to melt and the ocean to acidify, and making natural disasters spawn with movie-like sensationalism. And if you think the last 20 have been rough, just wait until the next 20, when Earth may hit the point of diminishing returns as a habitable planet. Witness all this with your own eyes in this video, which will show you exactly how the planet has been changing before our very eyes.

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