GLOBAL WARMING

41
15

GLOBAL WARMING

 

Increasing the temperature of the Earth’s surface caused by increasing concentrations of greenhouse gases in the atmosphere. Although carbon dioxide (CO2) is only the fourth most abundant gas in the atmosphere, it is essential to maintain the temperature of the Earth’s surface. With water vapor, CO2 absorbs the infrared radiation (long wave) emitted by the Earth and returns this energy to the surface of the Earth, keeping our planet much warmer [average surface temperature of 15 ° C (59 ° F)] that it would not be otherwise. This capture of incoming solar radiation is called the greenhouse effect.

 

The Greenhouse Effect:

The greenhouse effect occurs when short wave solar radiation (which is not hindered by greenhouse gases) heats the Earth’s surface and energy radiates through the atmosphere as heat from the Earth’s atmosphere. The longest wave In the wavelengths of 5-30 μm, much of this heat radiation is absorbed by water vapor and carbon dioxide, which radiate in turn , so as to heat the atmosphere and the land and sea surface. It is natural and what keeps the land habitable. Without the greenhouse effect, nighttime temperatures would collapse and the average surface temperature would be about minus 18 ° C, about the same as the moon, which is missing the mantle of our atmosphere. If the difference of about 33 ° C substantially the natural levels of water vapor (60% or more, including clouds) and carbon dioxide in the atmosphere of the earth. With regard to the greenhouse improvement or probability AGW, the particular problem is centered on the 8-18 micron band, where water vapor is a weak radiation absorber and where the heat radiation from the earth is bigger. Increasing concentrations of CO2 and other radioactive gases mean less heat is being lost in the space of the Earth’s lower atmosphere and, as a result, are likely to increase the temperature on the surface of the Earth. Atmosphere and oceans are at the center of attention.

 

Global Warming and Climate Change

 

There is clear evidence of changes in the composition of greenhouse gases in the lower atmosphere, and CO2, in particular, is steadily increasing to its current level of about 400 ppm. In May 2013, the average daily concentration of carbon dioxide in the Mauna Loa atmosphere in Hawaii, the world’s first reference site, exceeded 400 ppm for the first time since measurement began in 1958. It increased in the last 200 years and a half in the last 30 years. In 2016, it increased by 3.3 ppm (0.8%), the largest annual increase so far. Ice core samples show that levels of carbon dioxide and methane are higher than in the last 650,000 years. CO2 has 170-270 ppm.

 

Tipping point:

 

The February 2014 joint report of the Royal Society of the United Kingdom and the National Academy of Sciences of EE. UU It presents a large amount of information, including that of the IPCC Fifth Assessment Report, as indicated above. said too. “The results of the best climate models available do not predict the abrupt changes in these systems (often referred to as turning points) in the near future, however, as increasing global warming cannot rule out the possibility of a sudden change, However, “the climate system involves many competitive processes that could change the climate to a different state once the threshold is exceeded.” A well-known example is the south-north oceanic thermohaline circulation, which is maintained by water cold salt plunge into the North Atlantic and involves additional heat transport in the North Atlantic via the Gulf Stream. In the last ice age, impulses from the freshwater ice cover in North America resulted in the slowdown in this volatile circulation and the widespread climate change throughout the Northern Hemisphere. the cooling of the North Atlantic due to the melting of the Greenland icecap is much less intense and, therefore, should not cause abrupt changes. As another example, the warming of the Arctic could destabilize methane (a greenhouse gas) trapped in ocean sediments and permafrost, which could lead to a rapid release of a large amount of methane. If such rapid rejection occurs, significant and rapid climate change will occur.

 

 

 

These high-risk changes are considered improbable in this century, but by definition, they are difficult to predict.

41 COMMENTS

  1. I want to convey my passion for your generosity for all those that absolutely need help on this one matter. Your special commitment to passing the solution all-around came to be astonishingly significant and have continuously permitted associates much like me to achieve their desired goals. Your new informative tutorial entails much a person like me and even more to my fellow workers. With thanks; from each one of us.

  2. I wish to express thanks to this writer just for rescuing me from such a issue. As a result of browsing throughout the world-wide-web and meeting advice which were not powerful, I believed my life was done. Living without the presence of solutions to the difficulties you have sorted out through the site is a serious case, and the ones which may have in a wrong way damaged my career if I hadn’t discovered your blog. Your skills and kindness in dealing with all the stuff was crucial. I am not sure what I would’ve done if I hadn’t come across such a point like this. It’s possible to now relish my future. Thanks a lot so much for your impressive and amazing help. I will not be reluctant to refer your site to any person who should get recommendations about this issue.

  3. I happen to be commenting to make you be aware of what a exceptional discovery my wife’s daughter developed reading your webblog. She mastered a wide variety of details, including what it is like to have a very effective helping character to let most people without difficulty fully grasp a number of tricky issues. You actually exceeded our expectations. Thank you for presenting such precious, healthy, explanatory as well as unique tips about your topic to Sandra.

  4. I not to mention my friends have been reviewing the good solutions found on the website and then came up with a terrible suspicion I had not thanked the blog owner for those tips. Most of the young boys ended up as a result very interested to see all of them and have now in truth been loving them. Thanks for actually being considerably considerate and for selecting these kinds of awesome useful guides millions of individuals are really wanting to be informed on. My personal sincere apologies for not saying thanks to earlier.

  5. Thanks so much for providing individuals with such a pleasant chance to read from this web site. It is often very brilliant plus packed with amusement for me and my office acquaintances to visit your blog the equivalent of three times in 7 days to read the latest secrets you have got. And indeed, I am just actually impressed considering the special creative ideas served by you. Certain 3 areas on this page are absolutely the most effective we’ve had.

  6. I am commenting to make you know of the extraordinary encounter our princess encountered visiting your webblog. She mastered too many pieces, including what it’s like to possess an excellent giving heart to let men and women effortlessly have an understanding of a number of problematic matters. You actually exceeded my expectations. Thank you for rendering the practical, trusted, educational as well as unique tips on your topic to Julie.

  7. I happen to be writing to make you know of the impressive encounter my friend’s girl gained viewing your web page. She discovered many things, which included what it is like to have an awesome helping mood to let certain people without problems know a number of grueling issues. You undoubtedly surpassed our own expectations. I appreciate you for rendering these effective, dependable, edifying not to mention unique tips about that topic to Sandra.

  8. I definitely wanted to write down a remark so as to say thanks to you for these stunning pointers you are placing at this site. My considerable internet investigation has at the end been honored with useful insight to share with my pals. I would assert that many of us site visitors are truly fortunate to be in a useful place with many special professionals with helpful tactics. I feel very much happy to have encountered the web site and look forward to tons of more fabulous moments reading here. Thank you once again for all the details.

  9. My spouse and i got so relieved when Ervin could do his analysis while using the ideas he had while using the weblog. It is now and again perplexing to simply find yourself making a gift of hints which often people could have been selling. And we discover we need you to be grateful to for this. The type of explanations you’ve made, the easy web site navigation, the relationships you will assist to create – it is many unbelievable, and it’s really assisting our son in addition to our family believe that this topic is cool, and that’s really essential. Many thanks for everything!

  10. I have to point out my gratitude for your generosity in support of women who actually need guidance on this particular theme. Your personal commitment to getting the solution along turned out to be wonderfully useful and have always enabled girls just like me to arrive at their dreams. This valuable recommendations can mean this much to me and far more to my mates. Many thanks; from each one of us.

  11. I not to mention my guys happened to be examining the excellent items found on your web site while immediately got a terrible suspicion I never thanked the site owner for those strategies. All the young men are already as a consequence excited to learn them and have in truth been loving these things. Thank you for indeed being simply helpful and for making a decision on this sort of notable areas most people are really wanting to understand about. My sincere regret for not expressing appreciation to you sooner.

  12. I really wanted to compose a quick note to express gratitude to you for the great guides you are giving out here. My particularly long internet lookup has at the end of the day been recognized with really good insight to go over with my friends and family. I would suppose that most of us visitors actually are very fortunate to dwell in a fine website with many brilliant people with beneficial points. I feel really blessed to have seen your entire website and look forward to many more brilliant times reading here. Thanks a lot again for all the details.

  13. I am commenting to let you understand what a awesome experience my friend’s daughter obtained reading through your webblog. She learned plenty of things, which included how it is like to possess an excellent giving character to get other folks without problems completely grasp a number of multifaceted issues. You truly did more than readers’ expectations. Thank you for coming up with these precious, trustworthy, explanatory and also unique tips about this topic to Tanya.

LEAVE A REPLY

Please enter your comment!
Please enter your name here