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The global food security challenge is straightforward: by 2050, the world must feed 9 billion people. The demand for food will be 60% greater than it is today. The United Nations has set ending hunger, achieving food security and improved nutrition, and promoting sustainable agriculture as the second of its 17 Sustainable Development Goals (SDGs) for the year 2030.
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This article is published in collaboration withThe Conversation. Publication does not imply endorsement of views by the World Economic Forum.
The word “virus” strikes terror into the hearts of most people. It conjures up images of influenza, HIV, Yellow Fever, or Ebola. Of course we worry about these viruses—they bring us disease and sometimes an excruciatingly painful death.
But the 21 viral types that wreak havoc with the human body represent an insignificant fraction of the 100 million viral types on earth. Most viruses are actually vital to our very existence. No-one seems to stick up for the good guys that keep ecosystems diverse and balanced (although I did recently in a TEDx talk in Noosa).
The sheer number of these good viruses is astonishing. Their concentration in a productive lake or river is often 100 million per millilitre – that’s more than four times the population of Australia squeezed into a ¼ of a teaspoon of water.
Globally the oceans contain 1030 viruses. If you lined them all up they would extend for 10 million light years, or 100 times the distance across our galaxy. Collectively they would weigh as much as 75 million blue whales.