why is the earth losing water?

Answer 1

It isn't losing any water

Answer 2

the earth cant lose water, well if something came and took it, like an alien i guess, the water is just getting used faster than it is cycling. if people are 70% water and theres something like 7 billion people, i can imagine how there seemed to be more water when there were 1/2 as many people

Answer 3

The earth is loosing water because the space programs around the world are shedding ice crystals into space after launches. That's about the only way water is getting off this rock.

Answer 4

The earth is losing land not water.

Answer 5

The amount of clean water is decreasing but we are not really loosing water. Evaporation, Precipitation and Condensation makes it posssible for us to still have water. But the continuous pollution and oil spills decreases the amount of clean water that we can use for our necessities. Also, It affects the life of the marine animals which could lead to a possible scarcity of it.

Answer 6

I really hope no one answers with 'global warming' because a) it's a myth mistaken for the earths natural cycle pattern and b) if it did exist, it would be rapidly raising the earths average temperature which would melt ice therefor CREATING water.

Answer 7

Through Evaporation.

Answer 8

A major result of global warming is rapid evaporation in the water bodies...that is the answer. There is more evaporation than precipitation.

Answer 9

The earth does not lose any water.The total amount of water (fresh and salted is constant)
You are talking about fresh water suplies.
Surface water is water in a river, lake or fresh water wetland. Surface water is naturally replenished by precipitation and naturally lost through discharge to the oceans, evaporation and sub-surface seepage.

Although the only natural input to any surface water system is precipitation within its watershed, the total quantity of water in that system at any given time is also dependent on many other factors. These factors include storage capacity in lakes, wetlands and artificial reservoirs, the permeability of the soil beneath these storage bodies, the runoff characteristics of the land in the watershed, the timing of the precipitation and local evaporation rates. All of these factors also affect the proportions of water lost through discharge to the oceans, evaporation and sub-surface seepage.

Human activities can have a large impact on these factors. Humans often increase storage capacity by constructing reservoirs and decrease it by draining wetlands. Humans often increase runoff quantities and velocities by paving areas and channelizing stream flow.

The total quantity of water available at any given time is an important consideration. Some human water users have an intermittent need for water. For example, many farms require large quantities of water in the spring, and no water at all in the winter. To supply such a farm with water, a surface water system may require a large storage capacity to collect water throughout the year and release it in a short period of time. Other users have a continuous need for water, such as a power plant that requires water for cooling. To supply such a power plant with water, a surface water system only needs enough storage capacity to fill in when average stream flow is below the power plant's need.

Nevertheless, over the long term the average rate of precipitation within a watershed is the upper bound for average consumption of natural surface water from that watershed.

Natural surface water can be augmented by importing surface water from another watershed through a canal or pipeline. It can also be artificially augmented from any of the other sources listed here, however in practice the quantities are negligible. Humans can also cause surface water to be "lost" (i.e. become unusable) through pollution.

There are many things that are a threat to the Earths fresh water supply. Here are a few of them.


Climate change
Climate change will have significant impacts on water resources around the world because of the close connections between the climate and hydrologic cycle. Rising temperatures will increase evaporation and lead to increases in precipitation, though there will be regional variations in rainfall. Both droughts and floods may become more frequent in different regions at different times, and dramatic changes in snowfall and snowmelt are expected in mountainous areas. Higher temperatures will also affect water quality in ways that are not well understood. Possible impacts include increased eutrophication. Climate change could also mean an increase in demand for farm irrigation, garden sprinklers, and perhaps even swimming pools.


Depletion of aquifers
Since competition for water is growing, underground aquifers are becoming depleted. This is mainly due to irrigation by groundwater. Millions of small pumps are currently taking water out of aquifers to irrigate crops. Irrigation in dry areas such as India is supplied by groundwater.


Pollution and water protection
Water pollution is one of the many concerns of the world today. World governments have strived to find solutions to eliminate this problem. Many programs strive to protect our water resources. They are usually funded by donations from generous people .

Answer 10

The earths core is getting hotter because of global warming.