is global warming a threat?
... “Annual national US losses during 1950–1997 from the three major extremes (hurricanes, floods, and severe local storms), plus four others (hail, tornadoes, winter storms, and wind storms), collectively reveal no upward or downward trend over time, with an average annual loss of $10.3 billion US.” – ...
... “Annual national US losses during 1950–1997 from the three major extremes (hurricanes, floods, and severe local storms), plus four others (hail, tornadoes, winter storms, and wind storms), collectively reveal no upward or downward trend over time, with an average annual loss of $10.3 billion US.” – ...
lecture 13 for 351 - Department of Atmospheric Science
... past, it is changing now, and it will change even more in the future • It is extremely likely that the current warming trend has been brought about by human activity • The effects of the warming will not be felt uniformly across the globe – some areas will be affected more than others, and some plac ...
... past, it is changing now, and it will change even more in the future • It is extremely likely that the current warming trend has been brought about by human activity • The effects of the warming will not be felt uniformly across the globe – some areas will be affected more than others, and some plac ...
Large Part of Climate Change Deemed “Irreversible”
... an average rainfall decrease of 10% over 10 to 20 years.” remains essentially near the peak temperature, falling much Rising sea level is an irrevocable result of carbon less than one degree C for hundreds of years after dioxide emitted in the past, even if the emissions are totally emissions stop. ...
... an average rainfall decrease of 10% over 10 to 20 years.” remains essentially near the peak temperature, falling much Rising sea level is an irrevocable result of carbon less than one degree C for hundreds of years after dioxide emitted in the past, even if the emissions are totally emissions stop. ...
Slide 1
... ie. those responsible for historical CO2 (rich) are less likely to suffer than the poor “ On a balance of probabilities, the failure of our ...
... ie. those responsible for historical CO2 (rich) are less likely to suffer than the poor “ On a balance of probabilities, the failure of our ...
set of slides
... ie. those responsible for historical CO2 (rich) are less likely to suffer than the poor “ On a balance of probabilities, the failure of our ...
... ie. those responsible for historical CO2 (rich) are less likely to suffer than the poor “ On a balance of probabilities, the failure of our ...
Controversial Science Topics
... issues during the 1970s and 1980s followed the same basic rule: Present the students with the dilemma, give them rational processes for thinking through the dilemma, but do not try to impose your own values on them” (DoBoer, 1991, p. 181). ...
... issues during the 1970s and 1980s followed the same basic rule: Present the students with the dilemma, give them rational processes for thinking through the dilemma, but do not try to impose your own values on them” (DoBoer, 1991, p. 181). ...
The ecology of climate change and infectious diseases: comment
... First, climate change is not just a change in the global temperature; it is also a change in the weather. While temperatures affect the potential ranges of infectious diseases and their vectors, weather affects the timing, intensity and location of outbreaks. As warming occurs, weather patterns are ...
... First, climate change is not just a change in the global temperature; it is also a change in the weather. While temperatures affect the potential ranges of infectious diseases and their vectors, weather affects the timing, intensity and location of outbreaks. As warming occurs, weather patterns are ...
The Effect of Climate Change on Polar Bear Populations
... Sea Ice is greatly affected by rising temperatures. There has been natural variation in temperature throughout history, largely due to CO2 concentrations. In recent history we have been adding huge amounts of CO2 to the atmosphere, which increases temperature and melts sea ice. ...
... Sea Ice is greatly affected by rising temperatures. There has been natural variation in temperature throughout history, largely due to CO2 concentrations. In recent history we have been adding huge amounts of CO2 to the atmosphere, which increases temperature and melts sea ice. ...
dwaliser_climate101_07_21_06
... Predicting the Future Science, Politics & Society Plausible “Scenarios” For CO2 Emissions ...
... Predicting the Future Science, Politics & Society Plausible “Scenarios” For CO2 Emissions ...
The Compelling Science of Atmospheric Chemistry In Partnership
... are a factor in environmental conditions. Due to Homo sapiens disturbing the ozone layer, which is located in the atmosphere. Day-after-day people are injecting harmful chemicals into the air that harm the environment; they are called fossil fuels which is pollution. Reducing the amount of pollution ...
... are a factor in environmental conditions. Due to Homo sapiens disturbing the ozone layer, which is located in the atmosphere. Day-after-day people are injecting harmful chemicals into the air that harm the environment; they are called fossil fuels which is pollution. Reducing the amount of pollution ...
CLIMATE CHANGE: MYTHS AND REALITIES
... So let’s recap. Five myths: We don’t know if the earth is warming or, if so, why. If it is warming, don’t worry – climate change will do us more good than harm. With all this uncertainty, we just don’t know enough to act. We can’t afford to act. And even if we could, people will never be motivated e ...
... So let’s recap. Five myths: We don’t know if the earth is warming or, if so, why. If it is warming, don’t worry – climate change will do us more good than harm. With all this uncertainty, we just don’t know enough to act. We can’t afford to act. And even if we could, people will never be motivated e ...
Open Our B/W Cover
... Educate constituents about the impact of climate change and how they can influence their elected representatives. Pursue fossil-fuel divestment campaigns for institutions such as the City of Pittsburgh. Support specific campaigns that have a direct impact on climate change. Examples are Solari ...
... Educate constituents about the impact of climate change and how they can influence their elected representatives. Pursue fossil-fuel divestment campaigns for institutions such as the City of Pittsburgh. Support specific campaigns that have a direct impact on climate change. Examples are Solari ...
PPT File - Regional Climate Modeling Laboratory
... – Larger fraction of total rain will come in heavy rain events and may produce more floods and droughts – Possible changed seasonality – Possible changed diurnal patterns -> changes in soil moisture ...
... – Larger fraction of total rain will come in heavy rain events and may produce more floods and droughts – Possible changed seasonality – Possible changed diurnal patterns -> changes in soil moisture ...
NGSS Earth Science Weather and Climate Unit
... falling on the earth. These phenomena cause a cycle of ice ages and other gradual climate changes. (secondary to HS-ESS2-4) The geological record shows that changes to global and regional climate can be caused by interactions among changes in the sun’s energy output or Earth’s orbit, tectonic events ...
... falling on the earth. These phenomena cause a cycle of ice ages and other gradual climate changes. (secondary to HS-ESS2-4) The geological record shows that changes to global and regional climate can be caused by interactions among changes in the sun’s energy output or Earth’s orbit, tectonic events ...
Human Impacts Booklet
... As we saw in the equilibrium lab, when CO2 mixes with water it forms a weak acid (carbonic acid). The chemical equation can be seen below: CO2 (carbon dioxide) + H2O (water) H2CO3 (carbonic acid). The world’s oceans currently absorb as much as one-third of all CO2 emissions in our atmosphere. Ther ...
... As we saw in the equilibrium lab, when CO2 mixes with water it forms a weak acid (carbonic acid). The chemical equation can be seen below: CO2 (carbon dioxide) + H2O (water) H2CO3 (carbonic acid). The world’s oceans currently absorb as much as one-third of all CO2 emissions in our atmosphere. Ther ...
Overshoot, adapt and recover
... With the same 3%-per-year long-term emissions reductions that could, after several emissions reductions but a slower start, peak centuries, lead to greenhouse gas concentra- temperatures would rise substantially and the tion of about 350 parts per million (p.p.m.) of overshoot would extend. For exam ...
... With the same 3%-per-year long-term emissions reductions that could, after several emissions reductions but a slower start, peak centuries, lead to greenhouse gas concentra- temperatures would rise substantially and the tion of about 350 parts per million (p.p.m.) of overshoot would extend. For exam ...
The Second International Conference on Global Warming and
... forcing of recent and paleoclimate temperature changes. He suggested that up to 50% of the 20 th century global warming could be explained by solar radiation variability. J. Veizer (University of Ottawa) reviewed the evidence for solar output variation effects on the water cycle. John Christy (Unive ...
... forcing of recent and paleoclimate temperature changes. He suggested that up to 50% of the 20 th century global warming could be explained by solar radiation variability. J. Veizer (University of Ottawa) reviewed the evidence for solar output variation effects on the water cycle. John Christy (Unive ...
UN & GLOBAL WARMING
... gases at a level that will block dangerous human interference with the climate system. To reduce their combined greenhouse gas emissions by at least 5 per cent from 1990 levels by the period 2008-2012. Member countries of the UN Framework Convention on Climate Change negotiate the Kyoto Protocol ...
... gases at a level that will block dangerous human interference with the climate system. To reduce their combined greenhouse gas emissions by at least 5 per cent from 1990 levels by the period 2008-2012. Member countries of the UN Framework Convention on Climate Change negotiate the Kyoto Protocol ...
Slides
... Oreskes et al., Philosophy of Science, 2010 Frigg et al., Philosophy of Science, 2014 ...
... Oreskes et al., Philosophy of Science, 2010 Frigg et al., Philosophy of Science, 2014 ...
PowerPoint Presentation - Climate Science & Policy
... 515 Contributing Authors 4621 References quoted ...
... 515 Contributing Authors 4621 References quoted ...
Teacher Lesson plan - New Zealand Wind Energy Association
... - positive actions they can take to help reduce greenhouse gas emissions - positive actions to take with others to help get out important messages of reducing greenhouse gas emissions. • Play the Dr David Wratt video at: https://vimeo.com/147783169 and have ...
... - positive actions they can take to help reduce greenhouse gas emissions - positive actions to take with others to help get out important messages of reducing greenhouse gas emissions. • Play the Dr David Wratt video at: https://vimeo.com/147783169 and have ...
Politics and Greenhouse Climate Change
... • There have been significant advances in the methods used for attribution of the causes of observed climate change over the past two decades • A clear anthropogenic signal can be identified in observed climate changes over the last 50 years in many variables and in temperature in almost all regions ...
... • There have been significant advances in the methods used for attribution of the causes of observed climate change over the past two decades • A clear anthropogenic signal can be identified in observed climate changes over the last 50 years in many variables and in temperature in almost all regions ...
PEO - Department of Geological & Atmospheric Sciences
... Higher humidity: more spraying for pathogens favored by moist conditions. more problems with fall crop dry-down, wider bean heads for faster harvest due to shorter harvest period during the ...
... Higher humidity: more spraying for pathogens favored by moist conditions. more problems with fall crop dry-down, wider bean heads for faster harvest due to shorter harvest period during the ...
Global warming
Global warming and climate change are terms for the observed century-scale rise in the average temperature of the Earth's climate system and its related effects.Multiple lines of scientific evidence show that the climate system is warming. Although the increase of near-surface atmospheric temperature is the measure of global warming often reported in the popular press, most of the additional energy stored in the climate system since 1970 has gone into ocean warming. The remainder has melted ice, and warmed the continents and atmosphere. Many of the observed changes since the 1950s are unprecedented over decades to millennia.Scientific understanding of global warming is increasing. The Intergovernmental Panel on Climate Change (IPCC) reported in 2014 that scientists were more than 95% certain that most of global warming is caused by increasing concentrations of greenhouse gases and other human (anthropogenic) activities. Climate model projections summarized in the report indicated that during the 21st century the global surface temperature is likely to rise a further 0.3 to 1.7 °C (0.5 to 3.1 °F) for their lowest emissions scenario using stringent mitigation and 2.6 to 4.8 °C (4.7 to 8.6 °F) for their highest. These findings have been recognized by the national science academies of the major industrialized nations.Future climate change and associated impacts will differ from region to region around the globe. Anticipated effects include warming global temperature, rising sea levels, changing precipitation, and expansion of deserts in the subtropics. Warming is expected to be greatest in the Arctic, with the continuing retreat of glaciers, permafrost and sea ice. Other likely changes include more frequent extreme weather events including heat waves, droughts, heavy rainfall, and heavy snowfall; ocean acidification; and species extinctions due to shifting temperature regimes. Effects significant to humans include the threat to food security from decreasing crop yields and the abandonment of populated areas due to flooding.Possible societal responses to global warming include mitigation by emissions reduction, adaptation to its effects, building systems resilient to its effects, and possible future climate engineering. Most countries are parties to the United Nations Framework Convention on Climate Change (UNFCCC),whose ultimate objective is to prevent dangerous anthropogenic climate change. The UNFCCC have adopted a range of policies designed to reduce greenhouse gas emissions and to assist in adaptation to global warming. Parties to the UNFCCC have agreed that deep cuts in emissions are required, and that future global warming should be limited to below 2.0 °C (3.6 °F) relative to the pre-industrial level.