In Paris, the world will seek -- once again -- an agreement on the future of climate. Yet for a billion of the poorest people in the world, the language of that agreement will not do nearly enough to address the impacts of climate change they are already feeling today.
Water is how we experience the planet's climate; droughts and floods will overwhelmingly define our experience of climate change. Meeting a growing need for water while the climate is changing will be even harder. Even the richest in the world are susceptible. The drought in the western United States has threatened California's way of life, while the East Coast was recently hit by devastating floods that made places like South Carolina look like Bangladesh.
But it is our world's most vulnerable -- those living on less than U.S. $5 a day -- that should come first in our concerns. The upcoming climate negotiations present us with an opportunity to not only address global emissions, but also test our ability to truly solve interconnected environmental issues like climate and water as a necessary means to avoid social instability worldwide. By scaling innovative financing options, expanding use of available technology and investing in nature-based solutions, we can make water available and affordable to the world's poor, freeing-up household income that drives economies and improving health conditions around the world.
Today, nearly 700 million people around the world lack basic access to water, and a striking 2.4 billion lack access to sanitation. It is not surprising that these numbers contribute to making the water crisis the highest threat to global prosperity. Yet, a persistent misunderstanding of this challenge is the notion that the poor are in this predicament because they cannot pay. The truth is, the poor spend an estimated U.S. $200 billion per year on water access.
The high costs are due in part to what the poor have to pay for bottled and well water due to a lack of infrastructure or the means to tap into infrastructure. Many of those without access rely on informal water vendors -- known as "tanker truck mafia" -- in slums around the world. The price of water in these informal markets is remarkably high and can reach U.S. $15 per cubic meter; compare that to the U.S. $1 per cubic meter paid by households in New York City.
The poor also pay in the forms of forgone income and illness. The World Health Organization estimated that the total global economic losses associated with inadequate water supply and sanitation is approximately U.S. $260 billion annually. In short, the poor incur huge coping costs because they lack access to safe, efficient piped water networks.
Charity alone will not be able to solve global access to water. Conservative estimates of the expenditures required to provide and maintain safe water access is U.S. $1 trillion with only U.S. $8 billion provided in international aid each year.
But what if we could cut those costs in half while also giving the poor much needed access to water at a rate closer to what those in developed countries pay for water and sanitation services? Such a measure would free-up more than U.S. $100 billion per year for those households and would allow dramatic improvements in water security for the vulnerable, which would have a marked stabilizing effect on social structures across the developing world.
This is possible and it does not require inventing new technology, but rather scaling proven solutions that we have seen work on the ground.
Financing urban water connections through micro loans to individuals and community groups is showing real promise in many communities. India and China are home to one-third of those without access to water and more than half of those without access to sanitation. A long trail of countries from Nigeria to Indonesia follow. For the poor that are close to an existing water grid in a city, extending financing to buy last mile connections and toilets can have huge impact in increasing access to services. The work done at Water.org has shown that, when extended a loan to pay a connection fee, people are able to tap into the water supply or build a toilet, and repay the loan in full with consistent reliability -- Water.org's repayment rates exceed 99 percent.
The growth of off-grid water treatment technologies is also showing potential for positive change. The number of rural households without access to water and sanitation is roughly five times higher than that of the urban poor. For these individuals, and some in peri-urban areas, connecting to a public utility is often not an option. Because of falling water treatment costs and the growth of social impact investment capital, there are new possibilities to set-up water kiosks and deliver treated water to dispersed populations. Off-grid solutions, such as those offered by Water Health International, allow rural communities to tap local sources of water and render them potable, at a cost that can greatly undercut their current cost.
And we cannot forget about the benefits of investing in our most basic water infrastructure: nature.The poor often live in degraded watersheds or where utilities are unable to cope with deteriorated water sources. Water funds, which create mechanisms for downstream water users to pay for upstream conservation, have shown that investments in nature-based solutions, such as reforestation and riverbank repair, can improve the quality of the water supply. This drives economic development while saving utilities money by reducing water treatment costs. A recent study conducted by The Nature Conservancy of 500 large cities shows that in at least a quarter of those cities, the savings from reduced treatment costs more than paid for the conservation activity. These interventions disproportionately benefit the rural poor and contribute to a sustainable water management system.
Social entrepreneurs, powered by smart philanthropy and social impact investing, are spurring this trend to leverage market-based solutions in service to the poor, seeing them not as a "problem to be solved" with traditional charity, but as having intrinsic power as customers. Smarter, more efficient solutions allow the poor to redirect their coping costs to affordable, sustainable and higher quality water and sanitation services.
In the year when the world is concerning itself with climate change, we must address the current impacts, including global water security. That starts with providing access to basic water and sanitation. By putting the needs of the poor front and center during the climate discussions, we stand to address many of today's greatest social and environmental challenges.
This post is part of a "Climate Justice" series produced by The Huffington Post, in conjunction with the U.N.'s 21st Conference of the Parties (COP21) in Paris (Nov. 30-Dec. 11), aka the climate-change conference. The series will put a spotlight on populations who are adversely affected by climate change. To view the entire series, visit here.