OnePointOne is Arizona's newest sustainable vertical farm

Brazil's small farmers can now directly supply the country's school meals programs. It's been a big boost for local farmers, and it's helping the schools too.

Fed up with living in the world's most polluted city, some residents are fighting back, on their rooftops and backyards. In 2010, India launched the Jawarharlal Nehru Solar Mission, a government program to deploy 20,000 megawatts of grid-connected solar power in the country, but much of this push for renewable energy has only been focused on rural areas, leading urban residents to take up local control of their energy supplies.

Over the last two years, six seedbanks have been established in five villages in Odisha, India, with 72 men and women conserving 50 varieties of fibre and food crops seeds. This is a much needed shot in the arm for these districts which are plagued with hunger, poverty and insecurity.

What we sometimes call the “agri-food system” is broken — just ask farmworkers and food workers (exploited, underpaid), honeybees (collapsing), forested landscapes (fragmenting), the climate (warming), and the ever-growing number of people without access to nutritious food, or the land and resources with which to produce it. But a new branch of sustainability, agroecology, helps farmers and researchers develop farming practices that enhance soil fertility, recycle nutrients, optimize the use of energy and water, and, perhaps most importantly, increase the beneficial interactions of organisms in ecosystems.

In India, many farmers, especially women farmers, have transitioned to organic farming. While it requires a serious set of skills and knowledge, organic farming increases yields and decreases costs by eliminating the need to buy pesticides. The move is both ecological and economical, and the Indian government is trying to spread the solution.

Property rights, circumscribed jurisdictions, and conflicts with neighbors exacerbate Native American efforts to restore tribal land and resources. Some tribes have found success by tapping into a trend of support from the government and conservationists.

Farmland is expensive and scarce in urban areas. In Boston Higher Ground Farm uses green roofs to grow its produce and Grove Lab has designed a cabinet for people to grow their vegetables indoors.

The System of Root Intensification (SRI) method resulted in dramatically high yields from one Indian village. The system centers on a "less is more" approach and results in higher yields—without the use of GMOs. The idea has faced barriers in spreading, as scientists are wary of it, even as villagers embrace the empirically successful approach.

In Australia, the Murray-Darling Basin Ministerial Council was formed after a severe drought to bring together federal, state and regional governments and bridge parochial concerns. It was meant to manage the basin as a whole and end overuse and salinization of farm land, leveraging new technologies to adapt to new realities.

As India's government promotes organic exports, farmers in Punjab have non-economic reasons for avoiding pesticides: Their health.