Write a brief note on global warming
Q: Where does the United States stand in terms of global-warming contributors? It will not be too late if the whole human race begins to protect the planet.
Global warming causes and effects
Another example is the possibility for the Atlantic Meridional Overturning Circulation to slow or shut down see also shutdown of thermohaline circulation. The Western Antarctic Peninsula is warming faster than anywhere else besides some parts of the Arctic, according to the Antarctic and Southern Ocean Coalition. Q: How is global warming linked to extreme weather? The terms climate change and global warming are often used interchangeably, but climate change refers to both the rise in global temperatures because of human activities and the many impacts this rise has on the planet—such as more intense and frequent droughts and storms, melting glaciers and ice sheets, rising sea levels, warming seas which can cause coral reef bleaching and disrupt the marine food chain , and ocean acidification see question 7. Allergies, asthma, and infectious disease outbreaks will become more common due to increased growth of pollen-producing ragweed , higher levels of air pollution , and the spread of conditions favorable to pathogens and mosquitoes. Otherwise, we have no future! Also, a new and more unpredictable climate poses unique challenges to all life. Despite ups and downs from year to year, global average surface temperature is rising. Why does this matter? Marc Lallanilla and Alina Bradford contributed to this article. A recent observational study found that fewer low, dense clouds formed over a region in the Pacific Ocean when temperatures warmed, suggesting a positive cloud feedback in this region as the models predicted. And the rate of sea level rise is accelerating. CO Main articles: Greenhouse gas , Greenhouse effect , and Carbon dioxide in Earth's atmosphere Greenhouse gases trap heat radiating from the Earth to space.
People can also change how they live because of any changes that global warming will bring. While record-breaking years attract considerable public interest, individual years are less significant than the overall trend.
Between aboutyears ago and the beginning of the Industrial Revolution, its presence in the atmosphere amounted to about parts per million ppm. Current civilization—agriculture and population distribution—has developed based on the current climate.
Effects of global warming Global warming doesn't just mean warming — which is why "climate change" has become the trendier term among researchers and policy makers. So global warming could turn, say, a category 3 storm into a more dangerous category 4 storm.
The atmosphere today contains more greenhouse gas molecules, so more of the infrared energy emitted by the surface ends up being absorbed by the atmosphere. Water would be pumped into pipes through the engine room, which ended up heating the water slightly.
These secondary changes are called climate feedbacks, and they could more than double the amount of warming caused by carbon dioxide alone.
Global warming speech
The absorbed solar energy heats our planet. Other processes — such as non-energy use of fuels, iron and steel production, cement production and waste incineration — boost the total annual CO2 release in the U. The U. Shortly thereafter, more than 1, mayors, governors and business executives said they would continue to abide by the promised emissions cuts, Inside Climate News Reported. Some of these changes are already occurring. Q: Is the United States doing anything to prevent global warming? But the air in the upper stratosphere is actually getting colder, so scientists don't think changes in the sun have much effect Dust and dirt[ change change source ] Dust and dirt in the air come from natural sources such as volcanos ,   erosion and meteoric dust. There were some times where the temperatures were a little warmer or cooler.
The dips are related to global recessions.
based on 80 review