Direct observations confirm that none of these explains the observed warming over the latter half of the 20th century. I am not required to comment on anything other than I choose. Disputes within climate science concern the nature and magnitude of feedback processes involving clouds and water vapor, uncertainties about the rate at which the oceans take up heat and carbon dioxide, the effects of air pollution, and the nature and importance of climate change effects such as rising sea level, increasing acidity of the ocean, and the incidence of weather hazards such as floods, droughts, storms, and heat waves. We can reach that goal through immediate and sustained action to reduce our heat-trapping emissions like adopting technologies that increase energy efficiency, expanding our use of renewable energy, and slowing deforestation among other solutions. Your generous support helps develop science-based solutions for a healthy, safe, and sustainable future. Some of them said that they are not aware of the agreement of the scientists that the earth is warming because of them and their activities. However, once the sulphates drift back down to the surface, the cooling effect of volcanoes goes away.
Longer growing seasons, more favorable climate. Anthropogenic greenhouse gas emissions have increased since the pre-industrial era, driven largely by economic and population growth, and are now higher than ever. But notably, the most evident might be the effect of human activity on global warming. This comes through the emission of greenhouse gases, which we do when we burn fossil fuel coal, oil and natural gas. About the same time we began destroying many of the greatforests of the planet. The of thermal response used in converting forcings to forcing responses was adjusted to be one year rather than four years for volcanic forcings to better reflect the fast response time present in observations. The scientists are the only ones who can answer the questions whether we the humans are causing the global warming or not, and come up with policies that can be implemented to curb the menace.
Tens of thousands of scientists in more than a hundred nations have amassed an overwhelming amount of evidence pointing to a clear conclusion: Humans are the main cause. For example, sun spot activity was observed to be extremely low during the cool Little Ice Age between the 13th and 16th centuries. The explanations are qualitative instead of quantitative because we do not have quantitative data from these events in the distant past to construct their exact histories. They fail accurately to predict patterns. This has included testing the use of hydropower, ethanol, natural gas, biodiesel, and electricity as a means of powering vehicles, which has led to the introduction of hybrid vehicles. A: the sea levels will rise up and so half of the countries in this world will disappear. Climate Models Are Wrong Climate Models Overreact We experience weather on a day to day basis — with all the advances in recent decades meteorologists still outcomes more than five days in advance with any accuracy.
This Mediaeval Warm Period, as it is known, occurred at a time when the human contribution to greenhouse gasses was negligible burning fires was about the only fossil fuel activity. Due to the melting ice caps, ocean waters would rise and large sums of land could be lost. If there were such a proof it would be written down for all to see. The West should take responsibility for its environmental actions and reduce greenhouse gases emission to save this planet. Much as the Air Force develops computer programs to simulate aircraft flight under different conditions, climate scientists develop computer programs to simulate global climate changes under different conditions.
We could then run our own Fourier analysis or at least an Excel regression fit to see the derivative values at different places throughout known history. It is that they are trumpeting catastrophes that couldn't happen even if the models were right as justifying costly policies to try to prevent global warming. Yobernacle, I understand your opinion, but you need to re-read what Boston said, let's get it right. The levels of these gases are increasing at a faster rate than at any time in hundreds of thousands of years. Either there is a basis for fear about climate change, or, thereisn't.
The effects of this situation that is currently happening is global, and can affect anyone regardless of their geographical location. The body of evidence underlying our understanding of human-caused global warming remains robust. The scientists working on the assessments have carefully documented observed changes in air temperature, ocean temperature, ice retreat, and sea level rise since the past century. For more recent times the past millennium , scientists have been able to quantitatively attribute the major temperature fluctuations to changes in solar activity, volcanic eruptions, and human-produced greenhouse gases and particulate pollution. Thats why we are loosing species like a rocket.
An English major with a minor in Meteorology, I have a huge passion in learning about the weather. Thread Status: Not open for further replies. However, the science on the human contribution to modern warming is quite clear. As many scientists have pointed out, variations in global temperature correlate much better with solar activity and with complicated cycles of the oceans and atmosphere. At the present moment temps are changing faster than they have, ever as far as we can tell.
This is a powerful greenhouse gas that has been hidden underground for 300 million years …. The human-intensified greenhouse effect provides the only quantitative explanation for the current warming trend. The most rapid warming has occured in recent decades. There seem to be a myriad of answers to this question from all viewpoints on the issue of human involvement in global warming, making it a confusing topic to grasp for those who are not atmospheric scientists. In simpler terms, it is the warming of our atmosphere due to the pollution created by humans. The second largest source of greenhouse gas emissions in the United States is related to transportation, the burning of oil to produce energy in a combustion motor.
The Pleistocene describes the time period that spanned from 1. The model was adapted by calculating forcing responses for each of the different major climate forcings rather than simply total human and natural forcings, using the Berkeley Earth record for observations. Science is, however, never settled, there is always something more to learn. This rapid warming is totally being caused by humans burning fossilfuel, cutting down forests, mismanaging agriculture and … many otherthings, all of which are adding the greenhouse gases carbon dioxideand methane to the atmosphere. I resent people trying to manipulate with scare tactics, like global warming. Of course, the more energy used, the more greenhouse gases are emitted, the more humans cause global warming.
As scientists work to develop accurate models to predict the future impact of global warming, researchers… 1405 Words 6 Pages The Effects of Global Warming Global warming is a dangerous issue that has been caused by the actions of human beings. This devastating change affects every country on earth, and most importantly the world, as we know it is at risk. Everyone is affected by global warming, in some way or another. Just think about it… The climate has changed throughout the history. Do humans in fact pose a threat to the global warming crisis and are they to blame for the slow increase in temperature of the earths atmosphere? That our climate is changing so fast natural selection and evolution simply can't keep up.