(MENAFN- The Conversation) So you are likely to hear a lot about net zero emissions in the coming weeks when leaders and CEOs under pressure speak about how we are going to reduce the impacts of their countries or companies on climate change.

Amazon, for instance, has just announced that its Climate Obligation has been joined by more than 200 businesses, who have pledged to achieve net-zero emissions by 2040.

But what is net zero emissions really all about?

Zero emissions, regardless of the net restraint, means that no greenhouse gases are generated.

The country or enterprise lowers most of its emissions through efficiency and clean energy and offsets the remaining carbon dioxide from the atmosphere or to take emissions out of other places.

Some projects, like planting trees, can take years to pay for themselves in emissions cuts, while the firms that buy forest offsets continue to emit greenhouse gases.

Amazon (company)

Amazon.com, Inc. is an American multinational conglomerate which focuses on e-commerce, cloud computing, digital streaming, and artificial intelligence. It is one of the Big Five companies in the U. (wikipedia)

United Nations

The United Nations is an intergovernmental organization aiming to maintain international peace and security, develop friendly relations among nations, achieve international cooperation, (wikipedia)

Climate change and agriculture

Climate change and agriculture are interrelated processes, both of which take place on a global scale, with the adverse effects of climate change affecting agriculture both directly and indirectly. (wikipedia)

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