This is a truly global issue. 1995, Watson et al. Minimizing the burning of fossil fuels is key in creating as few Carbon emissions as possible. Deforestation Impacts on the Earth’s Water Cycle. Yet the command-and-control style of water management that took hold during the 20th century entails a Faustian bargain: While it has brought much of the world enormous prosperity, it has broken the water cycle—the natural storage and movement of water between the land, sea, and air that sustains life and is critical to that human prosperity. Disruption of natural water systems. When deforestation occurs, precious rain is lost from the area, flowing away as river water and causing permanent drying. ... Forests transport large quantities of water into the atmosphere via plant transpiration. No other species can support it or disrupt it like humans can, and that seems to suggest that we have a greater responsibility to preserve it than other living things. Mounting historical evidence for the influence of greenhouse warming on recent climate, and modeling projections into the future, highlight changes to the land-based water cycle as a major global change issue (Houghton et al. Nature: Human activities may change various aspects of the hydrological cycle. By changing the flow of rivers and removing vegetation from the land, humans have removed about one percent of the total yearly stream flow, which represents about 10 percent of the freshwater used by people in a single … 1996, SGCR 1999). Among other consequences this may contribute to climate modification over large areas of the Earth. Humans are reducing the amount of runoff water that reaches the world’s oceans. This replenishes the clouds and instigates rain that maintains the forests. Solutions While our disruption to the Carbon cycle is likely to continue, there are measures we can take to minimize the damage and help the cycle recover. Additionally, maintaining and The water cycle is a vital natural phenomenon that depends upon an entire functioning system. Left unchecked, such disruptions could play a part in changing the planet’s climate. Human modification of the water cycle is vast, and extremely damaging, as it increasingly contributes to climate change effects that, through negative feedback loops, multiply and intensify. Direct changes in in surface hydrology over large areas may occur as a result of changes in the vegetative cover or in the area covered by irrigation systems. The terrestrial water cycle plays a central role in the climate, ecology, and biogeochemistry of the planet. The Impact of Hydro Dams on the Environment.