Insects pollinate many crop plants, but insect populations are collapsing, and not only in Germany. Pesticides, monocultures, and changes to the landscape are among the causes. What can be done to reverse the trend?
While there has been much recent focus on mass species extinction, a new report shows food staples like coffee and chocolate could also be under threat. But greater agricultural biodiversity can save them.
Ever more power over food production is concentrated in the hands of ever fewer massive multinationals - with grave implications for food security and the environment.
Mangos, chocolate, apples and other produce could disappear as bees and other pollinator populations decline.
These five megatrends present major global threats for planet Earth - problems that must be solved if the world is to remain a supportive habitat for humans and other species. DW looks at causes and possible solutions.
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