'It's a groundswell': the farmers fighting to save the Earth's soil

At the Fujitsu factory in Japan, a significant decline in demand for semiconductor computer chips meant the company had large empty factory space sitting unused. A new business approach allowed them to dually address both the need to evolve their business model with a global decline of viable agricultural space needed to grow the world's food. Now, the factory houses indoor vegetable gardens, soil free and less resource-heavy than traditional farmland.

The rapid development of emerging economies across Asia and Africa is lifting hundreds of millions of people out of poverty - but there is much debate as to how to best structure this growth. If these economies evolve in the same way as in the West - with unchecked, excessive resource consumption and heavy pollution - the planet may be on the fast track to disaster. Earthrise explores how these nations can grow sustainably using improved, eco-conscious technologies like renewable energy and eco-friendly farming practices.

Some European schools have long championed free play in the woods as a way to combat the increasingly mainstream idea of "nature-deficit disorder." In Finland, enthusiastic teachers dedicate all of Friday to outdoor "secret" education - students don't even realize they are learning academic lessons. Inspired by these models, scattered American schools are experimenting with the idea, with some finding reductions in bullying and improvements in test scores and focus issues.

During the Industrial Revolution, farmers began harvesting monoculture crops which produced promising profits but proved harmful to the soil and weakened the immune capabilities of native plants. Lately, however, permaculture practices have been on the rise amongst farmers to better diversify their yields and reduce reliance on chemicals.

Scalesia, is a species of tree native to the Galapagos Islands that is quickly disappearing thanks to human activity. With much of the island's wildlife dependent on this tree, the ecosystem is threatened with the tree's extinction. Conservationists have taken action, however, by planting thousands of the trees as part of a shade-grown coffee operation.

Communities across Uganda have been realizing the benefits of agroforestry, an old farming system that mimics natural ecosystems. Apart from creating a diverse, stable local food supply, the practice promotes soil health, bolsters biodiversity, creates wildlife habitat, and sequesters carbon. An NGO is working with communities to spread the practice across the region, with marked effect.

As climate changes causes seawater to flood land and increase the salt content in soil, farms in Scotland and the Netherlands are experimenting with using the saltwater to grow food. Seawater Solutions is growing crops called halophytes that have a high-salt tolerance and can be eaten or used as material for cosmetics and biofuels. And the Salt Farm Foundation has shown that potatoes, cabbage, and tomatoes can grow in saltwater. These projects can labor intensive, but seawater irrigation could be a viable climate adaptation solution.

The nonprofit Coombs Outdoors runs summer and winter camps for youth to experience and learn about the outdoors. The camps are in high demand because of the affordable price made possible by donor subsidies.

A student-developed course at the University of California-Berkeley, Solutions for a Sustainable and Just Future, focuses on both individual and systemic strategies to address the climate crisis. More than 1,800 people have taken the class, and more than 70 percent of them said the course content inspired them to get involved in environmental work.

New Jersey schools are working to make climate education widespread by implementing general education standards that include climate change education in every grade and subject. These new education standards have been inspiring students to brainstorm solutions to climate-related issues like reducing food waste and increasing coastal resiliency. The state has also earmarked $5 million to help local teachers attend professional development sessions to teach them how to create new climate change-focused lesson plans.