What Is Global Warming?

Global warming is the warming of the earth through carbon dioxide (CO2) being pumped into the atmosphere from tailpipes and smokestacks. Then the gases trap heat like the glass in a greenhouse. This is where the term the “greenhouse effect” came from. Or we can say that Global Warming is the theory that we as humans are increasing greenhouse gases (the thick layer of gases that catches the sun’s rays and heats the earth) through industrialization causing more gases and increasing the amount of sunlight that gets caught and heats the Earth. Carbon dioxide is the most common gas that causes global warming.

What’s Happening

Scientists say that the barrier insulating the continental ice caps is melting. The scientists viewpoint is that global warming and pollution from CO2 emissions are adding to greenhouse gases so significantly that the Earth is warming up and will continue to warm.

“The impacts of warming temperatures in Antarctica are likely to occur first in the northern sections of the continent, where summer temperatures approach the melting point of water, 32 degrees F (0 degrees C).”

What’s Happening

As the ice melts, big chunks of glaciers will break off and become like ice cubes in a big glass of water. The ice chunks, known as icebergs, create mass in the ocean. The icebergs displace the water causing the ocean level to rise. Some of the shoreline in many places like Florida (where the land is at a low altitude) will go under water. This melting could increase the oceans height by up to 2 feet in only one century! This would mean many heavily populated costal cities would flood causing millions maybe billions of dollars and damage and the potential loss of life in these cities.

What Will Happen

“Rising global temperatures are expected to raise sea level, and change precipitation and other local climate conditions. Changing regional climate could alter forests, crop yields, and water supplies. It could also affect human health, animals, and many types of ecosystems. Deserts may expand into existing rangelands, and features of some of our national parks may be permanently altered.” Global surface temperature increased 0.74 ± 0.18 °C during the last century.

As global temperatures increase, the climate changes. Deaths from global warming will double in just 25 years, to 300,000 people a year.

Global sea levels could rise by more than 20 feet with the loss of shelf ice in Greenland and Antarctica, devastating costal areas worldwide.

Heat waves will be more frequent and intense. Droughts and wildfires will occur more often. The Arctic Ocean could be ice free by 2050. More than a million species could be driven to

extinction by 2050.

Where Has It Been Happening

This is where temperatures have risen in the world. The yellow represents warming, melting glaciers, Flooding & rising of sea level. The red represents the spread of disease, earlier springs, plant and animal shifts and population changes, coral reef bleaching, downpours, heavy snowfalls, and flooding, droughts and fires.

How Long Has It Been Going On

The reason the temperature has risen so much in the past 150 years is because of how much more we have used fossil fuels, which gives off carbon dioxide. “According to NOAA, the global warming rate in the last 25 years has risen to 3.6 degrees F per century, which tends to confirm the predictions of temperature increases made by international panels of climate scientists (IPCC).”

Explanation of the causes of global warming

Greenhouse gases

Pollution

Green House Effect The Earth receives energy

from the Sun in the form UV, visible, and near IR radiation, most of which passes through the atmosphere without being absorbed. Of the total amount of energy available at the top of the atmosphere (TOA), about 50% is absorbed at the Earth's surface. Due to this Temperature of the Earth is Increased. This effect is known as Greenhouse Effect. Greenhouse gases are transparent to shortwave but absorb longwave radiation. Greenhouse Gases Are -1)Carbon Dioxide (CO2)

2)Methane (CH4)

3)Nitrous oxide (N2O)

Pollution

1)Carbon dioxide emissions from fossil fuel burning power plants :-Our ever increasing addiction to electricity from coal burning power plants releases enormous amounts of carbon dioxide into the atmosphere. 40% of CO2 emissions come from electricity production, and burning coal accounts for 93% of emissions from the electric utility industry every day.

2)Carbon dioxide emissions from burning gasoline for transportation:-Our modern car culture and appetite for globally sourced goods is responsible for about 33% of emissions in the India. With our population growing at an alarming rate, the demand for more cars and consumer goods means that we are increasing the use of fossil fuels for transportation and manufacturing. Our consumption is outpacing our discoveries of ways to mitigate the effects, with no end in sight to our massive consumer culture.

Two Main reasons of pollution causing global warming.

How To Control Global Warming ?

We need to control global warming to reduce the future risk.Global warming is the increase in the average temperature of the Earth’s near-surface air and oceans in recent decades and its projected continuation. Global warming is a very serious issue. The future would be very terrible if we don’t take any action to reduce it right away.

 Use Public Transport. Use Renewable Energy Like Wind Power.  Burn Methane. Use Smart Cooler, Heater & Air Conditioner. Tune up and maintain vehicles properly. Clean the air in your house. Reduce electricity usage to the maximum. Prefer recycling. 

& Go Green...

Thanks For Watching…

Presentation Created by-1)Chinmay Paranjpe - (929)2)Niraj Patel - (930)3)Kaustubh Patil - (931)4)Mayuresh Patil - (932)