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Selective breeding gives the highest yield, but potentially at a price. It’s time to go back to our roots

If you find the whole business of organic too tame, there’s always landrace crops, which are positively subversive. Landrace crop varieties (sometimes known as folk crops) are ancient versions of the standardised crops we rely on today. Genetically variable, these biodiverse cultivars are allowed to grow at will and to cross pollinate. Farmers collect the seeds from successful crops and these become the parents of next year’s varieties. Simple.

If this sounds primitive (it is in fact Neolithic), it makes much more sense than modern agriculture, which is reliant on selective breeds that are addicted to fertilisers. The idea is that the selective breeds give the highest yield when conditions are good. This is a terrible strategy in an era of climate change when conditions are not ideal. Modern agriculture has wiped out almost all original genetic diversity. Ancient cultivars of wheat are used for straw or shoved into seed banks. Proponents of the Real Green Movement want them released into the soil.

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Reports say the US will no longer withdraw from the Paris deal or will change its approach.

Future Tense highlights several innovative projects designed to help build fish farming systems that are green, clean and more efficient.

How tiny creatures with small brains outwit us so easily.

Villagers in the Forest of Dean back plans to release a beaver family to protect their homes by damming waterways

Beavers could be put to work building dams to stop a village from flooding in the Forest of Dean, in what would be the first such scheme on government land.

The Forestry Commission has been an enthusiastic advocate for the release of a family of beavers into a large fenced area surrounding Greathough brook above the village of Lydbrook, on land owned by the commission.

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Warning comes after koala found clinging to axle of vehicle in Australia and three kittens survive 311-mile trip from Netherlands to UK under car bonnet

Motorists are being urged to be vigilant after two reports of animals becoming trapped under vehicles on opposite sides of the world.

In Australia, a koala survived a 16km (10 mile) trip clinging to the axle of a four-wheel drive vehicle before the driver stopped and heard the cries of the traumatised animal.

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She survived a 16km (10-mile) car journey, clinging to the axle of a four-wheel drive near Adelaide.

A happy ending for a family of hippos.

The former cycling world champion and Manchester’s first walking and cycling commissioner on riding safely, favourite rides and why he won’t use Strava

So, you’re the first cycling and walking commissioner for Greater Manchester. How come?

Because Andy Burnham [the mayor of Greater Manchester] phoned and asked me. I was quite taken aback, because do I have any qualifications? No. But I was taken with his enthusiasm. From the first few seconds it was pretty scary because I have been on the other side of the fence campaigning and lobbying [as British Cycling’s policy advisor] and saying what should be done, and then someone else says “go on, then” – you’re in a difficult position if you don’t want to be a hypocrite.

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Whether you’re commuting, touring or competing we’ve sourced the perfect bikes, from entry-level through mid-range to high spec

6KU Detroit, £325

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Unions warn effects of exposure to diesel pollution is ticking time bomb for business, likening situation to ‘early days of asbestos’

Legal claims over exposure to diesel exhaust fumes at work are growing as unions warn toxic air in the workplace is a ticking time bomb on a par with asbestos.

Royal Mail and at least one local authority are among major employers who are being sued over their alleged failure to protect staff from the damaging health effects of diesel pollution from vehicles. More cases are lined up, according to lawyers and unions involved in supporting workers.

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The changes in summer ice cover are seeing loss of wildlife, and new claims for territory and resources.

Rather than hours, the C-ion cell recharges in just minutes.

From tops with sweat wicking, to jeans with extra stretch and shorts with reinforcement, we pick the best pieces for cyclists who don’t relish arriving to work crumpled, clammy – or in Lycra

• link here to gallery of women’s clothes

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Increasingly, cycle brands are speeding beyond traditional performance wear into clothes that look everyday but have technical tweaks for riding. Tops are sweat wicking, jeans have extra stretch and shorts are reinforced around the inner thigh, and they look good too

• See our pick of men’s clothes and accessories

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Lessons learned from the devastating Blue Mountains bushfires of 2013 lead to a concerted push for planning for pets in emergencies. A remarkable West Australian, who is helping young rural kids and women to transform their lives, has been named the Rural Woman of the Year for 2017.

Nikki Towell doesn't let her wheelchair stop her working as a wool classer; we grow Asian vegies at Boon Luck Farm; train wild brumbies in the NT; and climb trees in Tasmania.

The chief scientists who worked on the spacecraft react after it plunged into Saturn's atmosphere.

Hundreds of volunteers gather to prepare soup as part of global movement to inspire action against food waste

Visitors to a community food market and bar in south London on Friday were presented with an unusual combination of pleasures: a soup disco.

Volunteers and customers at Mercato Metropolitano in Elephant and Castle gathered to chop vegetables and tear basil leaves from their stalks while professional chefs directed them and DJs from the nightclub Ministry of Sound spun records in the background.

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Rescued Sumatran orangutans, a stranded manatee, and brown bears near Ljubljana, Slovenia, are among this week’s pick of images from the natural world

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