Global Warming is a big Issue, caused by the Green House Effect,and it affects everything from plants, to products, weather, rain, and even the glaciers. The temperatures have increased about 0.3C over the past 25 years and has made the year 2001 the warmest one after 1998 but it has not been an uniform global warming; while some places are burning hot others are pretty cool.
The greenhouse effect starts with the rays of the sun comming into the earth and some of them are traped and absorbed by the gasses that we create with pollution which warms the atmosphere and then the gasses reflect that heat back to earth because of human activities like power plants.
There are many different causes but natural causes are only a few:
-A release of methane gas from arctic tundra and wetlands; this gas is a greenhouse gas which is made when heat is traped in the earth's atmosphere.
-The earth goes through a cycle of climate change. This climate change usually lasts about 40,000 years.
The most damage is made by man-made causes with pollution as the main one:
-Pollution of burning fossil fuels, also mining coal and oil allows methane to escape.
-Population and their means of transportation, which means more fossil burning
-Methane caused by animals which are a source of food.
-The trees that convert our CO2( carbon dioxide) to oxygen are being demolished because we're using the land that we cut the trees down from as property for our homes and buildings. We are not replacing the trees so we are constantly taking advantage of our natural resources.
-Many other polluting gasses are also involved
Effects of global warming:
-Increase of temperature on the earth by about 3° to 5° C by the year 2100.
-Rise of sea levels by at least 82 feet by the year 2100. this is due to thermal expansion of the ocean, in addition to melting of land ice.
-Changes in temperature and precipitation patterns increase the frequency, duration, and intensity of other extreme weather events, such as floods, droughts, heat waves, and tornadoes.
-Higher or lower agricultural yields
-Further glacial retreat and melt
-Reduced summer stream flows
-Species extinctions
-Diseases like malaria are returning into areas where they have been extinguished earlier.
-The summers are getting longer than the winters. This has affected the animals and their habitats making them change their lifestyle or become on the verge of extinction.
-The introduction of some new diseases, the bacteria are more effective and multiply much faster in warmer temperatures compared to cold temperatures.
-Crop production, as the crops are getting destroyed by the sudden change in temperatures or sudden on set of rains.
And this are only some of the causes and effects. The truth is that the planet is loosing its life slowly and we are to blame for it. We all have to become more aware of the dangers of unesesary confort and try our hardest to help fix what we have done.
I AM AGAINS POLLUTION BUT I ALONE CANNOT CHANGE THE WORLD SO LETS ALL FIND A WAY TO FIX THIS.
WITH LOVE:
thehotsforthenews
global warming is the real deal and hopefully soon going to end with the help of everyone
this is a big subject and everybody should pay some attention to it.
You must have missed it but NASA recently found that a lot of their tempurature data was flawed (ironically, partly due to a Y2K bug) and have revised their records. Here is the revised dataset from NASA. Positive numbers are above average and negative numbers are below average.
NASA Surface Air Tempuratures
Actually, 1934 is tied with 1998 as the hottest year on record . And of course that was before much man made carbon dioxide was put into the air. 1931 was also one of the very hottest years on record. And 1933, 1938 and 1939 are all worthy of mention as significantly warmer than average years with both of the latter two being warmer then 2001. Only three of the top 10 warmest years have occurred in the last decade while 4 of the top 10 warmest years happened in the 1930s prior to significant CO2 emissions by man.
Color me unconvinced.
Frankly I doubt that a decade worth of tempurature data proves anything about anything significant when it comes to the climate. When we look at a century worth of data we see tempurature fluctuating up and down with two very warm decades one of which came before there was much man made carbon dioxide. And we see a couple of cold decades. One was around the early 1900s before much carbon was emmitted and one was in the 1960s and 1970s during a period when carbon emmissions and other polution was quite high. I doubt that a century worth of data proves anything significant either because our climate moves in geological time.
well thanks for the update 4 real. im a high school student in taking world geography and this is a subject that we didnt realy go into it. but thanks for real and is like you say nothing can secure a specific change for good or bad when talking about climate. is good to know that i was somewhat wrong because then that means that we have a chance to realy change things around.!!!!!!!!