Farming on the world's highest plateau may sound impossible. But in Xizang Autonomous Region, researchers are using modern technology to push the limits of high-altitude agriculture. Our reporter Wang Tianyu reports from Lhasa, take a look.

WANG TIANYU, Lhasa, Xizang Autonomous Region "Grapes."

"Coffee Beans"

"And fish."

Wait, this is Xizang – the highest plateau in the world.

WANG TIANYU, Lhasa, Xizang Autonomous Region "I'm standing at more than 3,600 meters above sea level."

Most people picture Xizang as snow mountains and dry grasslands — not exactly ideal for fresh produce. But inside these greenhouses in its capital Lhasa, agriculture is going high-tech.

ZHANG KAI, Agricultural Researcher, Xizang Academy of Agricultural and Animal Sciences "Our grapes are very tasty, says this researcher."

The Xizang Academy of Agricultural and Animal Sciences has tested 60 grape varieties here. In the end, six were found to be suitable for this harsh climate.

ZHANG KAI, Agricultural Researcher, Xizang Academy of Agricultural and Animal Sciences "The strong sunlight and big temperature swings here make our grapes sweeter."

And that's not the most surprising thing – even subtropical coffee plants can grow here.

LABA ZHUOMA, Agricultural Researcher, Xizang Academy of Agricultural and Animal Sciences "We use shade netting and raise the humidity inside the greenhouse to help protect the coffee beans."

When freezing temperatures arrive at night, the greenhouse is covered with an extra layer of insulation to keep the temperature above 8 degrees Celsius.

"You can eat it like a fruit."
"Wow, sweet."

The researchers told me they plan to work with local companies to expand production, so people here can enjoy fresh fruit – and even fresh fish – without the high transportation costs.

Wang Tianyu, CGTN, Xizang Autonomous Region.