We will soon need double the amount of food and water
95 million people are born every single year. Today, there are just as many people on earth as the total number that has lived here before us. In the space of a few decades, the world's population will need double the amount of food and double the amount of water that it does today.
The environment cannot tolerate double the amount of meat production.
Food production is currently responsible for majority of the world's emissions. Most of these come from the production of meat. If our future food needs are to be covered by increased meat production, food production alone will fill all the quotas set for the year 2050.
The consequence is that meat production must be reduced rather than increased as a result of the population growth.
In the course of the last two hundred years, the world's population has increased sevenfold, from one to over seven billion. Before the year 2050, the UN expects this figure will probably grow to over nine billion. This will require a billion extra tonnes of grain and an extra 200 million tonnes of meat.
There is room for more
But do we have water for everyone?
Almost a billion people today don't have clean drinking water, while 70% of the world's freshwater is used for livestock and agriculture. The problem increases with climate change and droughts that contribute to reducing agricultural production.
We must produce more food with less drinking water
The production of animal proteins, such as cattle and pigs, is not sustainable in a world that lacks water. A single kilo of beef uses over 15,000 litres of drinking water, and could hardly be a frequent menu item when we need to feed two million more than we do currently. Over the next few decades, we must replace today's consumption of animal proteins with marine proteins.
On the path towards a sustainable diet?
The world needs more food. Much more food and it must be obtained from the oceans. The oceans cover vast areas and have raw materials and resources. For example, Norway, the world's biggest salmon farming nation, already produces three times as much food at sea as on land.
Aquaculture is one of the least resource-intensive forms of food production.
Increased production from the aquaculture industry can solve many of the challenges.