Earth was a giant, red hot, roiling, boiling sea of molten rock - a magma ocean. The heat had been generated by the repeated high speed collisions of much smaller bodies of space rocks that continually clumped together as they collided to form this planet. As the collisions tapered off the earth began to cool, forming a thin crust on its surface. As the cooling continued, water vapor began to escape and condense in the earth's early atmosphere. Clouds formed and storms raged, raining more and more water down on the primitive earth, cooling the surface further until it was flooded with water, forming the seas.
Earth has provided us with everything required for sustaining life like water, air, food, renewable sources, etc…
It is estimated that the first life forms on earth were primitive, one-celled creatures that appeared about 3 billion years ago. Then suddenly those single celled organisms began to evolve into multicellular organisms . Then an unprecedented profusion of life in incredibly complex forms began to fill earth.
Man evolved between 400,000 and 250,000 years ago and since then he is exploiting The earth for his own benefits …..
Non-renewable Resources is a natural resource that cannot be produced, re-grown, regenerated, or reused on a scale which can sustain its consumption rate. These resources often exist in a fixed amount, or are consumed much faster than nature can recreate them. Fossil fuels (such as coal, petroleum and natural gas)
Non-renewable energy sources, do, as their name suggests, run out. Apart from their impact on global warming , they are finite. Based on the data we have today, we can predict the moment they are actually exhausted. Putting a date on these energy sources underscores the world’s need for true sustainable energy sources.
Natural Gas (in cubic meters) Total world reserves Jan. 1st 2009: 174436171550404 World usage per second: 92653 Estimated date of exhaustion: 07:19 Sep 12, 2068
Oil (in barrels) Total world reserves Jan. 1st 2009: 1206780968626 World usage per second: 986 Estimated date of exhaustion: 16:36 Oct 22, 2047
Coal (in metric tonnes) Total world reserves Jan. 1st 2009: 841086192000 World usage per second: 203 Estimated date of exhaustion: 15:35 May 19, 2140
Uranium (in metric tonnes U-235) Total world reserves Jan. 1st 2009: 18096 World usage per second: 0.0000042222017 Estimated date of exhaustion: 19:56 Nov 28, 2144
We are burning our own planet with our Own hand …………..GLOBAL WARMING
Spread of disease As northern countries warm, disease carrying insects migrate north, bringing plague and disease with them. Indeed some scientists believe that in some countries thanks to global warming , malaria has not been fully eradicated.
Warmer waters and more hurricanes As the temperature of oceans rises, so will the probability of more frequent and stronger hurricanes. We saw in this in 2004 and 2005
Increased probability and intensity of droughts and heat waves Although some areas of Earth will become wetter due to global warming, other areas will suffer serious droughts and heat waves. Africa will receive the worst of it, with more severe droughts also expected in Europe. Water is already a dangerously rare commodity in Africa, and according to the Intergovernmental Panel on Climate Change, global warming will exacerbate the conditions and could lead to conflicts and war.
Economic consequences Most of the effects of anthropogenic global warming won’t be good. And these effects spell one thing for the countries of the world: economic consequences . Hurricanes cause do billions of dollars in damage, diseases cost money to treat and control and conflicts exacerbate all of these.
Polar ice caps : The ice caps melting is a four-pronged danger. First, it will raise sea levels. There are 5,773,000 cubic miles of water in ice caps, glaciers , and permanent snow. According to the National Snow and Ice Data Center, if all glaciers melted today the seas would rise about 230 feet. Luckily, that’s not going to happen all in one go! But sea levels will rise.
Second , melting ice caps will throw the global ecosystem out of balance. The ice caps are fresh water, and when they melt they will desalinate the ocean, or in plain English – make it less salty. The desalinization of the gulf current will “screw up” ocean currents, which regulate temperatures. The stream shutdown or irregularity would cool the area around north-east America and Western Europe. Luckily, that will slow some of the other effects of global warming in that area!
Third , temperature rises and changing landscapes in the arctic circle will endanger several species of animals. Only the most adaptable will survive.
Fourth , global warming could snowball with the ice caps gone. Ice caps are white, and reflect sunlight, much of which is reflected back into space, further cooling Earth. If the ice caps melt, the only reflector is the ocean. Darker colors absorb sunlight, further warming the Earth.
This could be our future , when earth will run out of RESOURCES .
Pass the earth to the future with life , Not without life .
Renewable sources of Energy ; natural resources that replenish themselves within time limits that permit sustained use, in contrast to nonrenewable resources. Use
Hydropower is the capture of the energy of moving water (falling of water from one level to another) for some useful purpose.
Wind power is the conversion of wind energy into electricity using wind turbines (usually mounted on a tower). Wind power is used in large scale wind farms for national electrical grids.
Solar energy is the energy from the sun ( in the form of heat and light) that is directly capture and converted into thermal or electrical energy and harnessed as solar power. Solar power is the technology of obtaining (harnessing) usable energy from the light of the sun.
Geothermal Energy is power generated by the harnessing of heat from the interior of the earth when it comes to (or close to) the earth’s surface. The regions with highest underground temperatures are in areas with active or geologically young volcanoes. Chief energy resources are hot dry rock, magma (molten rock), hydrothermal (water/steam from geysers and fissures) and geo-pressure (methane-saturated water under tremendous pressure at great depths).
Biomass Fuel (Bio-fuels) is any organic material produced by living organisms (plants, animals, or microorganisms) that can be burned directly as a heat source or converted into a liquid or gas. Some examples of biomass fuels are wood, crop residues, peat, manure, leaves, animal materials and other plant material.
Use renewable sources of energy and save earth
Now its all upto us, as earth is in our hands.