Researchers and industry representatives told the Senate Energy and Natural Resources Subcommittee on Water and Power July 25 that increased federal funding is necessary for water metering and water efficiency programs. As the government has spent billions of dollars in consumer rebates and tax incentives for energy efficiency over the past decade, but very little on water efficiency, the hearing examined the role of water use efficiency and its impact on energy use. According to Water Resources Group, global water demand is expected to grow by 40 percent by 2030.