Quantcast
Environmental News for a Healthier Planet and Life

Help Support EcoWatch

97% of Most Species-Rich Places on Earth Have Been Seriously Altered by Humans

Science

By James Cook University

James Cook University's Prof. Bill Laurance has taken part in a study to map the ecological effect of people on the planet. He said the news isn't great.


"The most species-rich parts of the planet—especially including the tropical rainforests—have been hit hardest. In total, around 97 percent of Earth's biologically richest real estate has been seriously altered by humans," he said.

The Congo Basin rainforest in west Africa is one of the biodiversity hotspots that face increasing pressure from human impacts. Photo credit: Severin Stalder via Wikimedia Commons

Peninsular Malaysia, where rampant logging is degrading and opening up forests to further exploitation. Photo credit: William Laurance


The scientists found environmental pressures are widespread, with only a few very remote areas escaping damage.

"Humans are the most voracious consumers planet Earth has ever seen. With our land-use, hunting and other exploitative activities, we are now directly impacting three-quarters of the Earth's land surface," said Laurance.

Researchers combined data garnered from unprecedented advances in remote sensing with information collected via surveys on the ground.

They compared data from the first survey in 1993 to the last available information set from 2009.

Laurance said that 71 percent of global ecoregions saw a marked increase in their human footprints.

But he said the news was not all bad.

Maps showing the current state and recent change in the global human footprint.

"While the global human footprint expanded by nine percent from 1993 to 2009, it didn't increase as fast as the human population—which rose by a quarter—or economic growth—which exploded by over 150 percent—during the same period."

Laurance said wealthy nations and those with strong control of corruption showed some signs of improvement.

"In broad terms, industrial nations and those with lower corruption appear to be doing a better job of slowing the expansion of their human footprint than poorer countries with weak governance. But the wealthy countries have a much higher per-capita footprint, so each person there is consuming a lot more than those in poorer nations."

Laurance said the suitability of lands for agriculture appears to be a major determinant in where ecological pressures appeared around the globe.

"The bottom line is that we need to slow rampant population growth, especially in Africa and parts of Asia and demand that people in wealthy nations consume less," he said.

EcoWatch Daily Newsletter

A man pushes his mother in a wheelchair down Ocean Drive in South Beach, Miami on May 19, 2020, amid the novel coronavirus pandemic. CHANDAN KHANNA / AFP via Getty Images

The U.S. reported more than 55,000 new coronavirus cases on Thursday, in a sign that the outbreak is not letting up as the Fourth of July weekend kicks off.

Read More Show Less
To better understand how people influence the overall health of dolphins, Oklahoma State University's Unmanned Systems Research Institute is developing a drone to collect samples from the spray that comes from their blowholes. Ken Y. / CC by 2.0

By Jason Bruck

Human actions have taken a steep toll on whales and dolphins. Some studies estimate that small whale abundance, which includes dolphins, has fallen 87% since 1980 and thousands of whales die from rope entanglement annually. But humans also cause less obvious harm. Researchers have found changes in the stress levels, reproductive health and respiratory health of these animals, but this valuable data is extremely hard to collect.

Read More Show Less

Sunscreen pollution is accelerating the demise of coral reefs globally by causing permanent DNA damage to coral. gonzalo martinez / iStock / Getty Images Plus

On July 29, Florida Governor Ron DeSantis signed into law a controversial bill prohibiting local governments from banning certain types of sunscreens.

Read More Show Less
Oat milk is popping up at coffee shops and grocery stores alike, quickly becoming one of the trendiest plant-based milks. jacqueline / CC by 2.0

By Kelli McGrane

Oat milk is popping up at coffee shops and grocery stores alike, quickly becoming one of the trendiest plant-based milks.

Read More Show Less

"Emissions from pyrotechnic displays are composed of numerous organic compounds as well as metals," a new study reports. Nodar Chernishev / EyeEm / Getty Images

Fireworks have taken a lot of heat recently. In South Dakota, fire experts have said President Trump's plan to hold a fireworks show is dangerous and public health experts have criticized the lack of plans to enforce mask wearing or social distancing. Now, a new study shows that shooting off fireworks at home may expose you and your family to dangerous levels of lead, copper and other toxins.

Read More Show Less
Billions worth of valuable metals such as gold, silver and copper were dumped or burned last year as electronic waste produced globally jumped to a record 53.6 million tons. Curtis Palmer / CC by 2.0

By Ashutosh Pandey

Billions worth of valuable metals such as gold, silver and copper were dumped or burned last year as electronic waste produced globally jumped to a record 53.6 million tons (Mt), or 7.3 kilogram per person, a UN report showed on Thursday.

Read More Show Less

Trending

A women walks with COVID-19 care kits distributed by Boston's Office of Neighborhood Services in Boston, Massachusetts on May 28, 2020. The pandemic has led to a rise in single-use plastic items, but reusable bags and cloth masks can be two ways to reduce waste. JOSEPH PREZIOSO / AFP via Getty Images

This month is Plastic Free July, the 31 days every year when millions of people pledge to give up single-use plastics.

Read More Show Less