Since the turn of the new millennium the issue of the environment has suddenly evolved into a widespread issue which is greatly discussed throughout the world. No longer are humans living in a world where the environment is serene or stable but rather becoming unrecognizable and diminishing before our eyes. Formerly a 29-page draft compiled in a UN study rendered the object of discussion at Berlin by governmental officials and top climate scientists to review and estimate the need of shift to low-carbon energies would cost between two and six percent of world output by 2050. Given China and the United States are the top emitters the report suggests, world powers are running out of time to lacerate their use of high-polluting fossil fuels and stay below agreed limits on global warming.

It says nations will have to impose drastic curbs on their still rising greenhouse gas emissions to keep a promise made by almost 200 countries in 2010 to limit global warming to less than 2 degrees Celsius (3.6 Fahrenheit) over pre-industrial times. The new draft shows that getting on track to meet the 2C goal would mean limiting greenhouse gas emissions to between 30 and 50 billion tones in 2030, a radical shift after a surge to 49 billion tones in 2010 from 38 billion in 1990.

The UN report warns temperatures have already risen by about 0.8 C (1.4F) since 1900 and are set to breach the 2 C ceiling on current trends in coming decades, U.N. reports show. Such rises would sharply raise risks to food and water supplies and could trigger irreversible damage, such as a meltdown of Greenland's ice, according to U.N. reports.

According to credible media sources, the draft figure out ways to cut emissions that include the use of renewable energy source such as wind, hydro- and solar power, nuclear power and "clean" fossil fuels, whose carbon emissions are captured and buried. Reportedly the low carbon sources account for 17 percent of the world's total energy supplies in 2010 and their share would have to triple - to 51 percent - or quadruple by 2050, as per scenario reviewed.

One of perfect alternatives can be plantation and cutting of trees must be discouraged. Trees are considered the lungs of the nature. They recycle all the polluting carbon in the air and return oxygen back into our atmosphere, creating a stable cycle of carbon in our atmosphere.