The emission of greenhouse gases, mostly carbon dioxide, primarily through burning of fossil fuels, enhanced the natural greenhouse effect and began making the earth warmer.
Global warming has already started, as shown by the rise in sea levels and warming in global temperatures.
as the industrial revolution began in the world such as industries factories motor cars infect every thing which release the carbon .due to which the temprature rise on earth .this is the main cause of global warming
Earth's climate has changed numerous times throughout geologic history. Many of these changes over the past few million years are due largely to periodic variations in earth's orbit known as "Milankovitch Cycles," after the Serbian mathematician who discovered them.
Global warming, however, typically refers to the current warming trend which is primarily due to human activity. Specifically, humans have found it profitable to burn fossil fuel from coal and oil, thus releasing over 30 billion tons of carbon dioxide, a greenhouse gas, into the atmosphere each year. The gradual accumulation of this heat trapping gas is responsible for the rapid rise in earth's temperature.
The origin of the phrase is from Doctor Wally Broecker, and is from a article called: "Climate Change: Are we on the Brink of a Pronounced Global warming" in Science magazine published in 1975.
In the paper, he had accurately predicted the rate and amount of temperature increase, but the foundation of his analysis - glacial cycles seen in an ice core from Greenland - were never corroborated.
By being too productive! At the beginning of the Industrial Revolution, about 250 years ago we discovered that we could dig up coal and burn it for industry and transport. Burning coal, a fossil fuel, released carbon dioxide that had been hidden underground for 300 million years. This overloaded the carbon cycle which normally removes carbon from the atmosphere, so carbon dioxide began to build up around the earth. The greenhouse gases absorbed more and more heat and the earth began to get warmer. Global Warming!
Humans, when we began burning fossil fuels (coal, oil and natural gas).
global warming
1000 years ago there was no global warming, just the normal warming of the earth by the sun. Global warming started when we discovered fossil fuels and started burning them seriously, at the beginning of the Industrial Revolution, about 250 years ago. This burning released age-old carbon dioxide that had been hidden underground for 300 million years. Carbon dioxide is a greenhouse gas, so extra gas in the atmosphere captures more heat, and this is global warming.
No, chlorine has no effect on Global Warming.
How is global warming happening
no but they get affected by global warming
It has started already. The earth is gradually warming.
The ozone has been depleted. This is due to global warming.
Global Warming
they started to become endangered when global warming had started to increase
We know now that global warming started in the Industrial Revolution, more than 200 years ago, when we discovered and started to burn fossil fuels, which released carbon dioxide (CO2). This is one of the greenhouse gases that are causing global warming.
The planet and everbody in it. Pollution is how global warming was started
No, global warming probably started in Britain with the invention of the steam engine and the start of the Industrial Revolution. The discovery that coal was readily available underground and that it burned so easily was the trigger for global warming.
It is a valid theory that humans started global warming through the expansion of concrete surfaces, cutting down of forests, eradication of wetlands, the use of fossil fuels, and automobiles which pump out global warming gases have all contributed to global warming and climate change.
Global Warming.
global warming!!!!!!
True global warming does not decrease temperatures. So, either the model for global warming's effects is hokus-pokus, or global warming as presently claimed, does not exist. Some global warming followers will have you believe that global warming makes the weather "act crazy". If true, then it is not really global warming, is it.
Global warming in itself isn't pollution - global warming is the gradual warming of the earth. However, global warming was caused by carbon dioxide pollution in the atmosphere, but global warming in itself isn't a pollution. yes it is a pollution