Diapositiva 1
... Multi-gas emissions reduction scenarios are needed (able to meet climate targets at substantially lower costs compared to a CO2-only strategy). ...
... Multi-gas emissions reduction scenarios are needed (able to meet climate targets at substantially lower costs compared to a CO2-only strategy). ...
Where are greenhouse gases from?
... Too many greenhouse gases leads to “climate change”. This melts our ice and raises sea levels. Less snow & ice to reflect the Sun’s rays back into space. ...
... Too many greenhouse gases leads to “climate change”. This melts our ice and raises sea levels. Less snow & ice to reflect the Sun’s rays back into space. ...
Dan Herms(9 MB, Updated: Dec - Changing Climate
... Global warming and the distribution of species. Global warming and phenology: • Phenological change as evidence of global warming. • Modeling changes in phenology of agricultural pests. Global warming and ecological disruption. • Decoupling of species interactions. • Effects on population dynamics. ...
... Global warming and the distribution of species. Global warming and phenology: • Phenological change as evidence of global warming. • Modeling changes in phenology of agricultural pests. Global warming and ecological disruption. • Decoupling of species interactions. • Effects on population dynamics. ...
Notes
... • When ocean water is chilled by artic temperatures, sea ice forms. • Salt does not freeze and is left behind, causing the ocean water to become denser as it becomes saltier. • This denser, saltier ocean water sinks; and warmer, lighter surface water replaces it. • The sinking of cold, saltier water ...
... • When ocean water is chilled by artic temperatures, sea ice forms. • Salt does not freeze and is left behind, causing the ocean water to become denser as it becomes saltier. • This denser, saltier ocean water sinks; and warmer, lighter surface water replaces it. • The sinking of cold, saltier water ...
Slide 1
... Outline – past, present and future of climate in the Sahel 1. oceanic forcing dominant in late 20th century droughts - what role for land-atmosphere interaction? 2. late 20th century response to anthropogenic forcings - roles of GreenHouse Gases and (sulfate) aerosols 3. why the uncertainty in proj ...
... Outline – past, present and future of climate in the Sahel 1. oceanic forcing dominant in late 20th century droughts - what role for land-atmosphere interaction? 2. late 20th century response to anthropogenic forcings - roles of GreenHouse Gases and (sulfate) aerosols 3. why the uncertainty in proj ...
45.315
... • There are many reasons why we produce a lot of greenhouse gases in Canada. • We have a cold climate, which means we use more energy and produce more emissions heating our homes than many other countries. • We are the second biggest country in the world, with great distances between our cities, whi ...
... • There are many reasons why we produce a lot of greenhouse gases in Canada. • We have a cold climate, which means we use more energy and produce more emissions heating our homes than many other countries. • We are the second biggest country in the world, with great distances between our cities, whi ...
United Nations Framework Convention on Climate Change (UNFCCC)
... Google+ Facebook LinkedIn Digg del.icio.us StumbleUpon ...
... Google+ Facebook LinkedIn Digg del.icio.us StumbleUpon ...
WORKING WITH MAINSTREAM MEDIA: CHALLENGES AND
... WHAT IS CLIMATE CHANGE? • Simplified Definition: Climate Change can be defined as the long term changes in the average weather pattern of a region observed over a period of time. Key weather conditions that change are temperature, precipitation and sea levels. • Causes: It is caused by increases in ...
... WHAT IS CLIMATE CHANGE? • Simplified Definition: Climate Change can be defined as the long term changes in the average weather pattern of a region observed over a period of time. Key weather conditions that change are temperature, precipitation and sea levels. • Causes: It is caused by increases in ...
Climate change and cities: the IPCC case for action
... unequivocal”. Global mean surface temperature has increased by 0.74°C (1.3°F) over the last 100 years, with temperatures over land rising much quicker than over oceans. The warming is widespread, with a maximum at higher northern latitudes. Most of the observed increase in temperature since 1950 is ...
... unequivocal”. Global mean surface temperature has increased by 0.74°C (1.3°F) over the last 100 years, with temperatures over land rising much quicker than over oceans. The warming is widespread, with a maximum at higher northern latitudes. Most of the observed increase in temperature since 1950 is ...
AMAP Efforts on Short-Lived Climate Forcing Agents
... • Black carbon, tropospheric ozone, and methane may contribute to Arctic warming to a degree comparable to the impacts of carbon dioxide … still considerable uncertainty regarding the magnitude of their effects ...
... • Black carbon, tropospheric ozone, and methane may contribute to Arctic warming to a degree comparable to the impacts of carbon dioxide … still considerable uncertainty regarding the magnitude of their effects ...
Climate modelling
... Emission scenarios from IPCC, includes also air pollution giving aerosols ppm ...
... Emission scenarios from IPCC, includes also air pollution giving aerosols ppm ...
Durban Climate Treaty Where are we now?
... • Carbon Footprint of Durban was 15,000 tonnes. Trees were planted outside city to offset. But this does not include air travel for 13,000 delegates! ...
... • Carbon Footprint of Durban was 15,000 tonnes. Trees were planted outside city to offset. But this does not include air travel for 13,000 delegates! ...
Nine Lies About Global Warming
... the decade in question. Oreskes then admitted that she had used the keywords ‘global climate change’. This reduced the number of papers under review to 1,247, of which 1,117 had been abstracted. Of all 1,117 abstracts, only 13 (one per cent) explicitly endorsed the ‘consensus view’. However, 34 abst ...
... the decade in question. Oreskes then admitted that she had used the keywords ‘global climate change’. This reduced the number of papers under review to 1,247, of which 1,117 had been abstracted. Of all 1,117 abstracts, only 13 (one per cent) explicitly endorsed the ‘consensus view’. However, 34 abst ...
Climate Stabilization Targets - The National Academies of Sciences
... Anthropocene, in which human activities will largely control the evolution of Earth’s environment. Carbon emissions during this century will essentially determine the magnitude of eventual impacts and whether the Anthropocene is a short-term, relatively minor change from the current climate or an ex ...
... Anthropocene, in which human activities will largely control the evolution of Earth’s environment. Carbon emissions during this century will essentially determine the magnitude of eventual impacts and whether the Anthropocene is a short-term, relatively minor change from the current climate or an ex ...
Climate Change
... different surfaces have different level of reflectivity Ice reflects more light than other substances Snow reflects 95% of radiation The water under the ice can absorb large amounts of heat energy, which could increase temp of water and cause more melting ...
... different surfaces have different level of reflectivity Ice reflects more light than other substances Snow reflects 95% of radiation The water under the ice can absorb large amounts of heat energy, which could increase temp of water and cause more melting ...
Aerosol Effects Direct Effect
... Greenhouse Gas Increases in the Atmosphere Over the Last 2000 Years CO2 Emissions Since the Mid-18th Century Recent Measurements of CO2 Concentrations in the Atmosphere Methane Emissions Since the Mid-19th Century What Activities Are Causing These Emissions? Likelihood of Human Causes of Climate Cha ...
... Greenhouse Gas Increases in the Atmosphere Over the Last 2000 Years CO2 Emissions Since the Mid-18th Century Recent Measurements of CO2 Concentrations in the Atmosphere Methane Emissions Since the Mid-19th Century What Activities Are Causing These Emissions? Likelihood of Human Causes of Climate Cha ...
Lesson 6 (Teacher)
... While the greenhouse effect is necessary for most life on Earth, increasing levels of greenhouse gases can cause Earth’s temperature to rise. This is what scientists believe is currently happening to our planet. The burning of fossil fuels and the loss of forests have caused levels of greenhouse gas ...
... While the greenhouse effect is necessary for most life on Earth, increasing levels of greenhouse gases can cause Earth’s temperature to rise. This is what scientists believe is currently happening to our planet. The burning of fossil fuels and the loss of forests have caused levels of greenhouse gas ...
Anthropogenic Climate Change –Connections to
... hydrocarbons, even in very small quantities, absorb much more strongly than the atmosphere itself. ...
... hydrocarbons, even in very small quantities, absorb much more strongly than the atmosphere itself. ...
pruebas de acceso a la universidad logse / loce
... The scientific community has reached a strong consensus regarding global climate change. The world is undoubtedly warming. This warming is mostly the result of emissions of carbon dioxide and other greenhouse gases from human activities including industrial processes, fossil fuel combustion, and cha ...
... The scientific community has reached a strong consensus regarding global climate change. The world is undoubtedly warming. This warming is mostly the result of emissions of carbon dioxide and other greenhouse gases from human activities including industrial processes, fossil fuel combustion, and cha ...
No Slide Title
... peak emission rate to <12 GtC/year for plausible, smooth emission trajectories. Emission rates and consequent rates of warming only really relevant to shorter-lived anthropogenic forcings. ...
... peak emission rate to <12 GtC/year for plausible, smooth emission trajectories. Emission rates and consequent rates of warming only really relevant to shorter-lived anthropogenic forcings. ...
Slide 1
... Measuring greenhouse gas emissions • Percentage difference between total GHG emissions of a biofuel and total GHG emissions of a conventional fuel • Life cycle assessment of biofuels accounts GHG emissions associated with: – Cultivation/provision – Processing/conversion – Transport – Land use chang ...
... Measuring greenhouse gas emissions • Percentage difference between total GHG emissions of a biofuel and total GHG emissions of a conventional fuel • Life cycle assessment of biofuels accounts GHG emissions associated with: – Cultivation/provision – Processing/conversion – Transport – Land use chang ...
How will the United States calculate the climate impact of bioenergy?
... Carbon neutrality … cannot be assumed a priori ...
... Carbon neutrality … cannot be assumed a priori ...
Summary for Policy Makers - Apollo
... ice cover to open water increases the rate of evaporation of water- vapour into the atmosphere. It also reduces the albedo effect, since much less energy is reflected back into space from open water than from ice. Both of these effects accelerate global warming. As the climate warms, land-based snow ...
... ice cover to open water increases the rate of evaporation of water- vapour into the atmosphere. It also reduces the albedo effect, since much less energy is reflected back into space from open water than from ice. Both of these effects accelerate global warming. As the climate warms, land-based snow ...
The Annotated “Take AIM at Climate Change”
... According to the Federal government’s Climate Change Science Program (CCSP), “Based on evidence from tree rings, other natural records, and scientific observations made around the world, Earth’s average temperature is now warmer than it has been for at least the past 1,300 years” and “During the 20t ...
... According to the Federal government’s Climate Change Science Program (CCSP), “Based on evidence from tree rings, other natural records, and scientific observations made around the world, Earth’s average temperature is now warmer than it has been for at least the past 1,300 years” and “During the 20t ...
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.