Water evaporation is a bigger cause of global warming than carbon dioxide as even the main greenhouse gas is water vapour, being a 95% of the greenhouse gases. That is equivalent to saying that there is a 10% chance that none of the global warming is caused by humans. Biology global warming sea level rise global warming. Powerpoints used for global warmingcarbon cycle teaching. Deforestation and global warming a level biology revision. Global warming first emerged as a cause of global concern in the 1980s, a result of the apparent rise in global temperatures, believed to be due to human activities, such as burning of fossil fuels and destruction of forests. This phenomenon has been observed over the past one or two centuries. A little project i worked on for biology about what deforestation and global warming are, why it occurs and their impacts. Pdf the greenhouse effect is a leading factor in keeping the earth warm. Global warming is melting glaciers in every region of the world, putting millions of people at risk from floods, droughts and lack of drinking water. Home a level and ib study tools biology snab evidence for global warming. Air pollution and forest health notes from around the world notes presented alphabetically by state, province, country or region there is a lot of information here, so it is suggested that you scroll down through the titles first for an overview. However, a cold week in june is a weatherrelated event and not a climaterelated one.
Above all, alternative energy sources solar, wind, hydro, geothermal. As level the greenhouse effect global warming learning objectives explain that infrared radiation by co, oh and ch bonds in co2, h2o and ch4, and this contributes to global warming. Within the lesson, pupils are encouraged to look at and evaluate evidence on global warming and the impact that human activity has had on this. Global warming is the term used for the rapid increase in global temperature over the last century. Sign up to see what your friends are reading, get book recommendations, and join the worlds largest community of readers. List of books and articles about global warming online. The names of braun and cervelli surfacing just made it personal for everybody in a uniform a a story. Best results consistent with humancaused global warming.
Warming and cooling effects of aerosols aerosols are tiny liquid or solid particles. A common misconception about global climate change is that a specific weather event occurring in a particular region for example, a very cool week in june in central indiana is evidence of global climate change. Unlike greenhouse gases ghgs, the climate effects of aerosols vary. The paper introduces global warming, elaborates its causes and hazards and presents some solutions to solve this hot issue. Climate and the effects of global climate change boundless. This book approaches the topic by explaining distinctions between weather and climate and. This paper develops two fisheries models in order to estimate the effect of global warming gw on firm value.
This is due to the larger heat capacity of oceans and because oceans lose more heat by evaporation. Global warming is the phenomenon of gradual increase in temperature near the earths surface. To undermine these conclusions, youd need to remove most or all of the bricks supporting them but as the evidence. Please read the information on each screen by clicking on the relevant information button the information explains how you are able to use the samples in your teaching. The effects of global warming or climate damage include farreaching and longlasting changes to the natural environment, to ecosystems and human societies caused directly or indirectly by human emissions of greenhouse gases. So, what happens is the earth acts like a greenhouse by trapping too much heat in. The midrange model estimate of human induced global warming by the. Without the greenhouse effect the earths average global temperature would be much colder and life on earth as we know. Note that blue links urls shown in footnotes are live and can be followed in pdf documents such as thisby clicking on them. It also includes the economic and social changes which stem from living in a warmer world. The study report on the greenhouse gases and their impact on global warming. It has been suggested that a reduction in the use of some fossil fuels is necessary if further global warming is to be prevented.
But in biology, it refers to something rather more exciting the way computers enable us to build lifelike models of organs, down to the last cell, that are providing extraordinary new insights into our bodies and minds. Nov 23, 2014 a little project i worked on for biology about what deforestation and global warming are, why it occurs and their impacts. The possible causes of climate change there are a couple of theories that relate to climate change and why it happens, but the finger points overwhelmingly towards human enhanced global warming given the current evidence collected by scientists. Global warming, human activity and biodiversity ccea. Measured using thermometers they give a reliable but shirt term record of global warming change. What are the choices for preparing for the impacts of climate change. Since the preindustrial period, global average land temperatures have increased almost twice as fast as global average temperatures. Global warming revision notes in a level and ib biology.
The basics of the greenhouse effect and climate change global warming are discussed. Evidence from longterm monitoring studies is now accumulating and suggests that the climate of the past few decades is anomalous compared with past climate variation, and that recent climatic and atmospheric trends are already affecting species. Global warming, human activity and biodiversity ccea there is increasing evidence that the level of carbon dioxide in the earths atmosphere is rising. Snab evidence for global warming flashcards in a level and. Help in an alevel bio question on the effects of global. Aerosols have a wide range of environmental effects, but on average they. It is a complex issue full of uncertainties and controversies. Suggest why these scientists do not agree that a reduction in the use of fossil fuels will prevent global warming 6 marks. Facts about global warming spread environmental awareness and encourage fight against global warming through your global warming essay the definition of global warming is, the observed and projected increase in the average temperature of earths atmosphere and oceans.
The designation of geographical entities in this book, and the presentation of the. Biology a level global warming revision free download as word doc. Humaninduced warming and associated sea level rises are expected to continue through the 21st century. Carbon sequestration in nature carbon dioxide sink wikipedia how to measure a trees carbon content lessons, labs evolution warming to evolution uc berkeleys links to teacher resources, lessons. Feb 22, 2015 since the ph scale is logarithmic, this represents approx.
Study of impacts of global warming on climate change. The current co2 level is higher than it has been in at least 800,000 years. Estimates of future co2 levels, indicate that by 2100 seawater could be nearly 150% more acidic a further decrease of 0. Carbon dioxide, along with nitrous oxide, methane and water vapour, make up the greenhouse gases which are preventing enough heat from escaping and causing global warming. Climate change now represents at least as great a threat to the number of species surviving on earth as habitatdestruction and modification. The combined impacts of rising co2 levels, temperature change, and other. Rising sea levels due to temperature shifts jeopardize life in coastal areas, both. Global warming is closely associated with a broad spectrum of other changes, such as. The paper introduces global warming, ela borates its causes and hazards and presen ts some solutions to solve this ho t issue. Sep 24, 2009 organisms were rapidly frozen in liquid nitrogen and stored at. First cellular approach of the effects of global warming on. A2 edexcel biology learn with flashcards, games, and more for free. Changes in ocean stratification, and other effects of climate change, may therefore.
When scientists measure carbon14 levels in the atmosphere, they find that it is much. Global warming revision cards in a level and ib biology. Deforestation and global warming alevel biology revision. This lesson outlines human impact on global warming and biodiversity as a consequence of global warming. Help in an alevel bio question on the effects of global warming. Causes and effects of global warming scool, the revision. There is debate as to whether global warming exists, as it could merely be another example of changes in temperature the world has seen over millions of years. Jul 07, 2015 rather, land surface warming is one of more than ten bricks supporting global warming. D iscu ssio n o n 2 3 a p ril 2 0 0 6 b y j im h a n sen n a tio n a l a ca d em y o f s cien ces, w a sh in g to n, d c. As level green chemistry greenhouse effect greenhouse gas. Global warming is a gradual increase in the earths temperature generally due to the greenhouse effect caused by increased levels of carbon dioxide, cfcs, and other pollutants. Increasing greenhouse gas concentrations are expected to have significant impacts on the worlds climate on a timescale of decades to centuries.
It is important to distinguish global warming from the greenhouse effect. Biology a level global warming revision global warming. Climate change effects have been linked to the collapse of various civilizations. Gw is defined as an increase in the average temperature of the earths surface as a. Start a free trial of quizlet plus by thanksgiving lock in 50% off all year try it free ends in 03d 12h 41m 03s. Is t h ere s till t im e to a v o id d isa stro u s h u m a n m a d e c lim a te c h a n g e. History, science, and solutions 2nd edition, by mark z. Global warming refers to global averages, with the amount of warming varying by region. Global warming and polar adaptations national geographic curriculum lessons cycles of matter. Biology a2 edexcel global warming the student room. Best results consistent with humancaused global warming posted on 3 august 2012 by dana1981. You can purchase this powerpoint from my online store. Click on the start button in the introduction screen. Global warming and its effects, such as more intense summer and winter storms, are also referred to as climate change.