If only Sir David recommended we become vegetarian
Sir David Attenborough described humans as "a plague on Earth", (Mercury, January 23).
He said that not only does an increasing world population add to climate change, but we are also running out of space to grow food.
I have recently received information from a number of charities about a campaign, Enough Food For Every One IF.
This June, the UK hosts the leaders of the world's richest nations at the G8 Summit and a hunger summit will take place just before the main event.
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Members of the IF campaign will urge world leaders to tackle the food crisis.
Neither Sir David nor the charity literature I have received so far about the IF campaign has suggested reducing consumption of or giving up meat to tackle the food problem. More land is used to grow crops to feed animals than to feed people.
Many years ago, the UN recommended an emphasis on growing food for direct human consumption and removing subsidies for livestock farming to ease future food shortages.
The EU gives billions of pounds each year to Europe's farmers that mostly goes to subsidise livestock production and keep down the price of meat and dairy.
No doubt people will pay lip service to the IF campaign and readily sign petitions without making personal dietary changes, in the hope world leaders will find a solution that will not affect them.
Lent begins soon. This is an ideal opportunity to try a plant-based diet.
Elizabeth Allison, Aylestone.