As climate change and over-use of water strain water resource, "putting the right price on water" will better concerned industries as well as the environment, the Organization of Economic Co-operation and Development said Tuesday.

Days before the World Water Day on March 22, the Paris-based organization called urgent water efficiency on its website by presenting three reports related to use of water.

"Today agriculture uses more water than households and industry put together -- about 70 percent of global freshwater withdrawals," OECD said in the reports.

Furthermore, in decades, the consumption in manufacturing and power supply will grow remarkably, squeezing domestic supply and leaving little to sustain ecosystems, the reports said.

Current water demand and habits in water use will make "nearly one in every two people live in water-stressed areas by 2030," OECD added.

To tackle the potential crisis, the organization said properly pricing water usage and wastewater services would encourage people to "waste less, pollute less, and invest more in water infrastructure."

"Balancing financial, environmental and social objectives in water pricing policies remains a challenge in most OECD countries," the organization said. It suggested raising the price of agriculture water and charging farmers fairly on use of water infrastructure.

From now on, "agriculture must adopt long-term strategies to improve water usage," the organization said, adding that it is a priority to increase investment in water and sanitation infrastructure in developing countries.

According to OECD, 1 billion people around the world lack access to safe water supplies and 2.6 billion people have no access to basic sanitation.

"Doubling annual investment - from USD 15 billion to USD 30 billion" would halve the population suffering from lack of drinking water, the reports said.

In OECD area, increased water investment has brought up water bill over the last decade. Currently, many countries spend more to deal with wastewater than to bring in drinking water.