Write a note on global warming

Select Page Global Warming Essay Global warming refers to the rise in surface temperature of the earth due to the green house effect created by green house gases. Global warming is a big environmental and social issue all over the world which everyone must know especially our kids and children as they are the future. Long and Short Essay on Global Warming in English Let your kids and school going children learn about this environmental issue, its causes and prevention methods using these essay on Global warming, written in English language using very simple words for students use. You can select any global warming essay given below:

Write a note on global warming

The models get core assumptions wrong — the hot spot is missing 22 — 26, 28 — 31 Clouds cool the planet as it warms 38 — 56 The models are wrong on a local, regional, or continental scale.

Figure 1 Climate Sensitivity Comparison empirical methods versus models, for a doubling of the CO2 level. The direct effect of CO2 is only 1. Models amplify that warming with assumptions about positive feedback see the blue region of model estimates in the graph below.

But observations show that net feedback is probably negative, which would instead reduce the direct effect of the extra carbon dioxide. While independent scientists point to the empirical evidence, government funded scientists argue that a majority of scientists, a consensus, support the theory that a man-made catastrophe is coming.

The test of scientific knowledge is through experiment and observation. The only evidence the government scientists provide on the key points of attribution the cause of the warming come from simulations of the climate done with computers.

A multitude of observations are in rough agreement that any increase in global average temperature caused by a doubling of CO2 is more likely to be about half a degree than the 3. The major problem for models: Feedbacks Our climate changes because of outside effects, called forcings: The Earth is a ball of magma, is a 12, km thick, with a thin crust about 12 km of rock on top, who knows what effects come from within?

The IPCC recognizes only two types of forcings: Forcings are difficult to unravel. Harder still are feedbacks, as systems all over the planet simultaneously adjust to changing conditions.

In a warmer world, for instance, less ice and more plant-life means less sunlight is reflected to space, which creates more warming. The oceans release carbon dioxide, more water evaporates, humidity changes, sea-levels rise, and all of those consequent changes further affect temperatures.

Indeed while CO2 may cause one degree of warming, the feedbacks amplify this — theoretically anyway — by up to three degrees. The major agent of feedback, according to the IPCC, is water vapor ie. Some details matter more than others. Models assume that relative humidity will stay the same over the tropics as the world warms, that clouds are a positive feedback and not a negative one, and that cloud changes are a feedback and not a forcing in their own right.

These are three critical and demonstrable errors. In addition, if Miscolscki is right, and an increase in carbon dioxide leads to a decrease in water vapor, then the sensitivity due to CO2 could be close to zero. The global warming predictions are contradicted by the data.

The exception proves that the rule is wrong. That is the principle of science. If there is an exception to any rule, and if it can be proved by observation, that rule is wrong. Lerner, Climate sensitivity: Analysis of feedback mechanisms.

American Geophysical Union, pp. Prall,Jacob Haroldand Stephen H. Expert credibility in climate change, PNAS, Cosmic ray decreases affect atmospheric aerosols and clouds. Geophysical Research Letters Le Traon [] Global hydrographic variability patterns during Evidence for strengthening of the tropical general circulation in the s.

Climate change during —Human that cause global warming are more than natural causes global warming. The earth has been changing for many years until now it is still changing because of modern lifestyle of human. Human activities include industrial production, burning fossil fuel, mining, cattle rearing or deforestation.

Archer's Global Warming: Understanding the Forecast2 nd Edition, is the first real text to present thescience and policy surrounding climate change at the right timberdesignmag.comanying videos, simulations and instructional support makes iteasier to build a syllabus to improve and create new material onclimate change.

Archer's polished writing style makes the textentertaining while the improved. Scientists have searched for years for proof that global warming is man-made, but the evidence is right under their noses on the NASA web site. Global warming is man-made, by these two people.

In the year , NASA showed earth warming at less than C per century. But by , they had more.

write a note on global warming

Accompanying the concerns of climate change and global warming is the media spin, propaganda, and special interests.

For many years in some countries, scientists and environmental groups raising concerns about climate change faced stern opposition, and at one time, ridicule. Initially, many big businesses and countries such as the United States were openly challenging concerns of climate .

Global Warming: Essay, Speech, Short Note, Article, Paragraph Deforestation refers to the cutting of trees and removal of forests in order to fulfill the needs of the urban world. Plants and trees are vital to the ecosystem’s survival as they absorb the carbon dioxide present in the air and release back oxygen/5(25).

Global area-averaged lower tropospheric temperature anomalies (departures from year calendar monthly means, ). The month centered average is meant to give an indication of the lower frequency variations in the data; the choice of 13 months is somewhat arbitrary an odd number of months allows centered plotting on months with no time lag between the two plotted time series.

Write a note on global warming