Always private
DuckDuckGo never tracks your searches.
Learn More
You can hide this reminder in Search Settings
All regions
Argentina
Australia
Austria
Belgium (fr)
Belgium (nl)
Brazil
Bulgaria
Canada (en)
Canada (fr)
Catalonia
Chile
China
Colombia
Croatia
Czech Republic
Denmark
Estonia
Finland
France
Germany
Greece
Hong Kong
Hungary
Iceland
India (en)
Indonesia (en)
Ireland
Israel (en)
Italy
Japan
Korea
Latvia
Lithuania
Malaysia (en)
Mexico
Netherlands
New Zealand
Norway
Pakistan (en)
Peru
Philippines (en)
Poland
Portugal
Romania
Russia
Saudi Arabia
Singapore
Slovakia
Slovenia
South Africa
Spain (ca)
Spain (es)
Sweden
Switzerland (de)
Switzerland (fr)
Taiwan
Thailand (en)
Turkey
Ukraine
United Kingdom
US (English)
US (Spanish)
Vietnam (en)
Safe search: moderate
Strict
Moderate
Off
Any time
Any time
Past day
Past week
Past month
Past year
  1. Only showing results from theconversation.com

    Clear filter to show all search results

  2. theconversation.com

    Sydney's 14 wastewater treatment plants could be modified to also accept food waste, research shows. The 'anaerobic digestion' process would produce energy as well as nutrients for reuse.
  3. theconversation.com

    Biogas is often overlooked as a source of renewable energy, but it could be a solution to dealing with the 9.5 million tonnes of food waste created by the UK every year.
  4. theconversation.com

    The global food system produces enough food for everyone, yet, in 2023, 333 million people worldwide were food insecure and 783 million were chronically hungry.An estimated 1.3 billion tons of ...
  5. Can’t find what you’re looking for?

    Help us improve DuckDuckGo searches with your feedback

Custom date rangeX