The era of change has begun and the whole world is adapting to it. Technology has groomed and boomed in such a way that life seems non-existing without it. But as it is said excess of everything is disastrous, so is the case of technology and innovations. The intervention of human activities in natural phenomena has led to the cause of Global Warming.
The globe is heating up. Both land and oceans are warmer now than the record-keeping which began in 1880, and temperatures are still tickling upward. This temperature rise, in a nutshell, is global warming.
According to the National Oceanic and Atmospheric Administration (NOAA): Average surface temperatures rose a total of 1.71 degrees Fahrenheit (0.95 degrees Celsius) between 1880 and 2016. The pace of change has been an additional 0.13 degrees F (0.07 degrees C) per decade, with the land surface warming faster than the ocean surface — 0.18 degrees F (0.10 degrees C) versus 0.11 degrees F (0.06 degrees C) per decade, respectively.
The Paris Agreement, summoned by 159 nations as of the summer 2017, aims to halt that warming at 2.7 degrees F (1.5 degrees C) above Earth's average temperature during preindustrial times — a goal most scientists and policy makers agree will be a challenge to meet. Let's look out the factors as of how humanity has heated up the planet:-
The Greenhouse Effect:
The main cause in raising the temperature is the combustion of fossil fuels. These hydrocarbons heat up the planet via the greenhouse effect, which is caused by the interaction between Earth's atmosphere and incoming radiation from the sun.Since the beginning of the industrial revolution, humans have been rapidly changing the balance of gases in the atmosphere. Burning fossil fuels like coal and oil releases water vapor, carbon dioxide (CO2), methane (CH4), ozone and nitrous oxide (N2O) — the primary greenhouse gases. Carbon dioxide is the most common greenhouse gas.CO2 absorbs infrared radiation and the global mean temperature is increasing.
Deforestation is also a large contributor to excessive CO2 in the atmosphere. In fact, deforestation is the second largest human-made source of carbon dioxide, according to research published by Duke University. When trees are killed, they release the carbon they have stored during photosynthesis. According to the 2010 Global Forest Resources Assessment, deforestation releases nearly a billion tons of carbon into the atmosphere per year.
Effects of Global Warming:
Melting of Glaciers:
Perhaps the most visible effect of climate change so far is the melting of glaciers and sea ice. The ice sheets have been retreating since the end of the last Ice Age about 11,700 years ago, but the last century's warming has hastened their demise. A 2016 study found that there is a 99 percent chance that global warming has caused the recent retreat of glaciers; in fact, the research showed, these rivers of ice retreated 10 to 15 times the distance they would have if the climate had stayed stable. Glacier National Park in Montana had 150 glaciers in the late 1800s. Today it has 26. The loss of glaciers can cause the loss of human life when icy dams holding back glacier lakes destabilize and burst, or when avalanches caused by unstable ice bury villages.
More hotter and dry conditions:
Global warming will change things between the poles, too. The areas which are already dy and facing drought are expected to become even drier as the world warms. The Southwest and Central Plains of the United States, for example, are expected to experience decades-long "megadroughts" harsher than anything else in human memory.
Another impact of global warming: extreme weather. Hurricanes and typhoons are expected to become more intense as the planet warms.
Some of the most immediate impacts of global warming are beneath the waves. Oceans act as a carbon sink — they absorb dissolved carbon dioxide. That's not a bad thing for the atmosphere, but it isn't great for the marine ecosystem. When carbon dioxide reacts with seawater, it leads to a decline in pH, a process known as ocean acidification. Increased acidity eats away at the calcium carbonate shells and skeletons that many ocean organisms depend on for survival.
The solution for all this lies in the hands of human beings only. The technology which was created for making our life easy and smooth, has become a threat for the planet. It is better to wake up now and think how this technology can be used to save our planet.