Planting Billions of Trees Turned Barren Desert into a Carbon Sink That Lowers CO2

A mixed-species section of the Green Great Wall – Credit: 中国新闻网 CC 3.0. BY

China’s multi-decade long, successful effort to plant a ring of trees around one of the world’s most hostile deserts has sprouted an unexpected benefit to humanity.

Along with protecting the nation’s grasslands and agriculture from the spreading sands of the dismal Taklamakan Desert, the giant ring of trees has turned previous unproductive land into a carbon sink that draws CO2 out of the atmosphere.

It’s thought, and some isolated research has indeed demonstrated, that humans can prevent the worst effects of a rise in average global temperatures by planting trees to absorb more CO2 from the atmosphere.

This strategy has limits, however, when viewed on a global scale. Atmospheric CO2 levels continue to rise, while there is a limit in the amount of land that can be turned over to forests.

One-third of our planet is covered in deserts, where vegetation is sparse or absent, and rainfall is scarce, yet despite their vast acreage they collectively hold less than one-tenth of the world’s carbon stock, or the amount of carbon that is held underground.

A study conducted by NASA and California Technical Institute (Caltech) has used satellite data to demonstrate that the “sea of death” as the Taklamakan Desert was called in antiquity, could be utilized to store carbon and reduce the greenhouse effect.

The Taklamakan Desert. Credit: NASA World Wind 1.4.

Starting in 1978, China’s Three-North Shelter Belt program aimed to plant trees along the borders of the great Taklamakan to stop sandstorms from ruining adjacent pasture and agriculture land. As the world’s single farthest point from any ocean, the Taklamakan is one of the driest and most hostile landscapes on our planet.

The massive Himalayas rise to the south and east, the Pamirs to the southwest, and a pair of mountains known as the Tian Shan and the Altai to the west, leaving landscape completely isolated from moisture.

66 billion trees have been planted by estimates since the start of the Shelter Belt program, which finished in 2024. Monikered the “Green Great Wall,” this incredible increase in greenery has raised average rainfall by several millimeters, resulting in a natural growth of foliage during the wet season that boosts photosynthesis along the tree line, leading to greater degrees of sequestration.

“We found, for the first time, that human-led intervention can effectively enhance carbon sequestration in even the most extreme arid landscapes, demonstrating the potential to transform a desert into a carbon sink and halt desertification,” study co-author Yuk Yung, a professor of planetary science at Caltech and a senior research scientist in NASA’s Jet Propulsion Laboratory, told Live Science in an email.

By precise numbers, it has reduced the average carbon content in the desert air from 416 parts per million to 413 ppm. Parts per million is used as a measurement for the greenhouse effect. Worldwide, the number is 429.3. It was 350 in before the advent of industrialization.If more shelter belt-style tree planting efforts could be used to reclaim desert landscapes, it could open vast areas to absorbing carbon. With little to no vegetation, deserts in their natural state have precious little ability to do so. Planting Billions of Trees Turned Barren Desert into a Carbon Sink That Lowers CO2
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Miracle Recovery for World’s Rarest and Strangest Deer – Just 39 Became 8,200

Pere David’s deer at the Jiangsu Dafeng Elk National Nature Reserve – credit, Jiangsu Dafeng Elk National Nature Reserve

Tramping through coastal marshlands in eastern China, a strange looking deer roams freely in herds of hundreds; a remarkable recovery from where they had been just a few decades ago.

Described in ancient China as a beast with the antlers of a deer, hooves of an ox, face of a horse, and tail of a donkey, Père David’s deer was at one time the rarest of its kind on Earth.

Hunted to extinction in the wild 125 years ago, captive animals clung to life in a far away land, until in 1985, their descendants could return to a wiser China where a more eco-conscious population welcomed them home to the quiet marshlands.

In the early 20th century, the British nobleman and politician Herbrand Russell, 11th Duke of Bedford, acquired a few Père David’s deer from the Berlin Zoo and built up a large herd on his estate at Woburn Abbey.

In 1985 the duke’s great-grandson Robin Russell, 14th Duke of Bedford, donated 39 Père David’s deer to the Chinese government for a reintroduction program. They were placed in a park/reserve that once belonged exclusively for canned hunts conducted by the emperors in Beijing—the killing field had become a sanctuary.

A second re-introduction into China was conducted in 1986 where 36 Père David’s deer were chosen from five UK zoological gardens. From less than 100, these original animals have multiplied into 8,200 and seem—as if by a miracle—not be be suffering from low genetic diversity. They enjoy a 17% annual growth rate in the population.

Today, all of the deer that roam China are descended from Russel’s herd, and across China’s many elk sanctuaries like Tianezhou and Dafeng, dozens of square miles of pristine habitat are protected for this incredible animal. Plans are underway to reintroduce the deer to much more wild areas, where they will have to learn to avoid predators and battle the elements once again.

A Chinese-language moniker for the Père David’s deer translates to “the four dislikes” referring to the component appearance mentioned above. As is so often the case in Chinese society, this strangeness is paired with a legend.

The following was taken from Wikipedia,

According to Chinese legend, when the tyrant King Zhou of Shang ruled the land more than 3,000 years ago, a horse, a donkey, an ox and a deer went into a cave in the forest to meditate and on the day the King executed his minister Bigan, the animals awoke from their meditation and turned into humans.

They entered society, learned of the King’s heinous acts and wanted to take recourse against the King, who was powerful. So they transformed themselves into one creature that combined the speed of the horse, the strength of the ox, the donkey’s keen sense of direction and the nimble agility of the deer.

This new animal then galloped to the Kunlun Mountains to seek the advice of the Primeval Lord of Heaven. The Lord was astonished at the sight of a creature that had antlers of a deer, hooves of an ox, face of a horse and tail of a donkey.“It’s unlike any of four creatures!” he exclaimed. Upon learning of the animal’s quest, Lord gave his blessing and dispatched the creature to his disciple the sage Jiang Ziya, who was battling the King. Jiang Ziya rode the creature to victory over the King and helped found the Zhou dynasty. Miracle Recovery for World’s Rarest and Strangest Deer – Just 39 Became 8,200
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