The Truckee River Canyon. Credit: Michael Conner.

Natural capital isn't something we hear about very often, and it certainly isn't a new idea. Aldo Leopold and other conservationists recognized the role that natural ecosystems play in our lives as early as the 1940's. But understanding and measuring that role hasn't been easy. That's where the Natural Capital Project comes in.

The project focuses on ecosystem services – the natural processes that ecosystems provide and humans benefit from. Those include how forests filter our drinking water, how wetlands provide protection from storm surges, and how bees and other pollinators support our agricultural industry. While these services may not be the first thing you think of when it comes to nature, researchers are discovering that they're vital to human health and decision makers are starting to factor that it.

A few examples:

In the 1990's, New York City's water quality dropped below EPA standards. The obvious option was to built a new water filtration plant – with a hefty price tag: $6-8 billion for construction and $300 million in yearly operating expenses. Instead, the city decided to invest in the natural processes that help keep water clean. That meant looking upstream to the Catskills watershed where intact ecosystems could help filter the water. The city bought land upstream and improved sewer treatment plants – all at a much lower price: $1-1.5 billion.

In China, the Yangtze River Basin experienced devastating floods in 1998. Many believed the vast deforestation of the surrounding area had been the major cause, since it had eliminated the natural buffer that existed. Since then, the Chinese Government has adopted a system of ecosystem payments – giving subsidies to farmers to plant trees and preserve forested areas.  All in all, their program in budgeted in the billions.

The Natural Capital project has created an online tool known as InVEST that's freely available to the public. It allows users to map ecosystem services in any landscape. The project's co-found Gretchen Daily is hopeful that the tool will make it much easier for natural capital to be part of land use decision-making – especially in countries where development pressures are strong. "It's stunning to see how rapidly things are changing globally. We're losing trillions of dollars of value in natural capital in the form of rain forests and other key natural assets" Daily said. The project is already working with the government of Colombia to use InVEST and to improve their resource permitting process. You can read more about where else they're working here.

Listen to the Putting a Price on Nature radio report online.

And how this metamorphosis saves Monkeys!

Colombia: a beautiful country, with incredible forests and diverse wildlife, but like many other countries, a trash problem. With no formal trash collection system, the forests and villages suffer from scattered plastic bags, endangering wildlife and creating a mess on village streets. One such village was Los Limites, until they came up with a most transformative solution: Eco-Mochilas!

The Eco-Mochila project was invented by the organization Proyecto Titi (Project Tamarin), a dynamic conservation program that combines field research, education, and community programs in an effort to protect the endangered Cotton Top Tamarin.

An Eco-Mochila is a bag made from crocheting 100 plastic bags into a colorful beach bag or purse. The innovative woman who create the bags are called the Asoartesanas. They encourage villagers and school children to collect plastic bags and as they go door to door to collect, they educate the people about their local wildlife. Then, they cut the bags into strips and begin their craft.

Eco-Mochilas are sold throughout the world at various venues and bring in a suitable salary for an artist. Of course, the collecting of thousands of plastic bags has other benefits: a more beautiful village, and a forest clear of trash, which makes a certain one-pound monkey very happy.

The endangered Cotton Top Tamarin is found only in the forests of Colombia. Deforestation and capture for the pet trade are the species' greatest threats. The Eco-Mochila project creates sustenance for villagers, an alternative to using the forest for such, and of course, offers a cleaner forest for all wildlife.

The program has been so successful that the Asoartesanas have trained people from other countries to begin similar project in their communities…

And in case this is important to their case, eco-mochilas are cute, come in different sizes, can be personalized, make great presents and are water resistant. I have three!

Click here to purchase an Eco-Mochila and help Cotton-Top Tamarins; and come visit the Tamarins at the Oakland Zoo anytime.