Architect Nilanjan Bhowal wants to do something about Delhi's profusion of poorly constructed and polluting buildings. He designs sustainable buildings inspired by traditional construction methods.

Nemeh Mohsin is 15-years-old, and lives in Tripoli, Lebanon. He does karate, likes school, and wants to be a lawyer one day.

For some, the Amazonian water hyacinth is an ornamental plant, for others an invasive green plague. For the planthopper, it's lunch.

Siara Anacilia from Mozambique is 15 years old and loves music. She wants to be an engineer and earn enough money to support her parents.

From toilet paper made from bamboo to solar leasing, entrepreneurs in Ghana are brimming with ideas for green businesses. But they often lack capital. Crowdfunding gives them the boost they need.

The German village of Feldheim produces its own green energy. Solar, wind and biogas have replaced fossil fuels for electricity and heating. And rising energy prices aren't a problem. How did they do it?

This week's global teen is Gerald Kwame Adomako Amankwah from Ghana. He lives in Accra, has two sisters, likes playing soccer and is a big fan of gospel music.

Animal and plant species are dying out in increasing numbers. Pollution and dwindling habitats are two big reasons why. Can animal parks, rescue stations, catch quotas and protected areas help us better save species from extinction?

He used to be homeless, but now Jacobus Claassen stars in performances worldwide. He is part of South Africa's Zip Zap Circus, an organization that offers free training to children and young people of all backgrounds, changing lives as it goes.

Indigenous communities are the guardians of the Amazon forest. Their lands are legally protected, but since President Jair Bolsonaro came to power, that's of little help anymore. Loggers are taking what they want. Violence is on the rise, the Karipuna people are fighting back.