Plastic ground foil keeps weeds at bay and protects crops from dirt. But it needs to be replaced regularly and is not biodegradable. Chemists are developing a biodegradable alternative based on cellulose that is simply sprayed onto the ground.
Organic agriculture is supposed to be the ultimate environmental savior. But can it feed the 10 billion people expected by 2050 in a sustainable manner?
Seaweed is a global phenomenon and is often seen as either a plague or a blessing. Over the past 99 episodes, eco@africa has looked into the many uses of this marine plant — everything from superfood to clothing.
Experts around the world agree that bio-based products are essential for a sustainable society. Researchers are working hard to develop innovative projects such as regenerating human body parts out of wood fibers.
The UN World Tourism Organization likes to cite this Central American country between the Caribbean and the Pacific as a good example of sustainable tourism. Is that justified? DW reporter Lukas Stege investigates.
© 2018 Deutsche Welle |
Legal notice |
| Mobile version