The document discusses the greenhouse effect and how it leads to warming of the Earth. It explains that greenhouse gases like carbon dioxide and methane trap heat in the atmosphere and have increased due to human emissions. Data from ice cores shows a clear correlation between CO2 levels, temperature, and sea level rise over hundreds of thousands of years. While CO2 levels have increased about 40% since the industrial revolution, emissions continue to rise rapidly and could lead to over 2 degrees Celsius of warming with serious consequences if left unchecked.
The EXPLODING POPULATION OF 7 B IS INFLUENCING OUR CLIMATE BY BURNING FOSSIL FUELS THAT EMIT CARBON DIOXIDE, CO2.
1. THE HUMAN INFLUENCE ON WARMING
Emissions of the greenhouse gas CO2 are increasing at a rate of 2.5 ppm per year.
2. CONTRAST THIS WITH SLOWER NATURAL PROCESSES
18K – 10K years ago, C02 increased at a rate 1/300th slower.
3. THE IMPACT OF CONTINUING CLIMATE CHANGE
Melting of the Arctic is increasing our winter climate extremes.
Disclaimer -
The Content belongs to IPCC (The Intergovernmental Panel on Climate Change). Sharing here is just to spread awareness about Climate Change.
https://www.ipcc.ch/report/ar6/wg1/downloads/outreach/IPCC_AR6_WGI_SPM_Basic_Slide_Deck_Figures.pdf
Recent changes in the climate ... Climate change is already affecting every inhabited region. This is important to take this issue seriously now, in the coming years the problem will be huge. The world is changing rapidly, Climate Change is the biggest challenge now, technology like carbon capture, artificial photosynthesis, Solar CSP, Green Hydrogen, and many more can be helpful. Teachers must work on teaching climate change issues and their solutions to students to inspire them to work and invent new solutions to climate change problems.
-- BY SHIVAM PARMAR (Designer)
The EXPLODING POPULATION OF 7 B IS INFLUENCING OUR CLIMATE BY BURNING FOSSIL FUELS THAT EMIT CARBON DIOXIDE, CO2.
1. THE HUMAN INFLUENCE ON WARMING
Emissions of the greenhouse gas CO2 are increasing at a rate of 2.5 ppm per year.
2. CONTRAST THIS WITH SLOWER NATURAL PROCESSES
18K – 10K years ago, C02 increased at a rate 1/300th slower.
3. THE IMPACT OF CONTINUING CLIMATE CHANGE
Melting of the Arctic is increasing our winter climate extremes.
Disclaimer -
The Content belongs to IPCC (The Intergovernmental Panel on Climate Change). Sharing here is just to spread awareness about Climate Change.
https://www.ipcc.ch/report/ar6/wg1/downloads/outreach/IPCC_AR6_WGI_SPM_Basic_Slide_Deck_Figures.pdf
Recent changes in the climate ... Climate change is already affecting every inhabited region. This is important to take this issue seriously now, in the coming years the problem will be huge. The world is changing rapidly, Climate Change is the biggest challenge now, technology like carbon capture, artificial photosynthesis, Solar CSP, Green Hydrogen, and many more can be helpful. Teachers must work on teaching climate change issues and their solutions to students to inspire them to work and invent new solutions to climate change problems.
-- BY SHIVAM PARMAR (Designer)
What is climate change doing to us and for us?Paul H. Carr
What are we doing to our climate? Emissions from fossil fuel burning have raised carbon dioxide concentrations 35% higher than in the last millions of years. This increase is warming our planet via the Greenhouse Effect. What is climate change doing to and for us? Dry regions are drier and wet ones wetter. Wildfires have increased threefold, hurricanes more violent, floods setting record heights, glaciers melting, and seas rising. Parts of Earth are increasingly uninhabitable. Climate change requires us to act as a global community. Climate justice enjoins emitters to pay the social-environmental costs of fossil fuel burning. This would expedite green solar, wind, and next-generation nuclear energy sources. Individuals should conserve resources, waste less food, and eat a plant rich diet.
Slide ini berusaha untuk memancing dan memotivasi agar para pembaca untuk lebih meluangkan sedikit waktu berfikir tentang pemanasan global, penyebab, dampak serta bagaimana meminimalisasinya... dst
What is climate change doing to us and for us?Paul H. Carr
What are we doing to our climate? Emissions from fossil fuel burning have raised carbon dioxide concentrations 35% higher than in the last millions of years. This increase is warming our planet via the Greenhouse Effect. What is climate change doing to and for us? Dry regions are drier and wet ones wetter. Wildfires have increased threefold, hurricanes more violent, floods setting record heights, glaciers melting, and seas rising. Parts of Earth are increasingly uninhabitable. Climate change requires us to act as a global community. Climate justice enjoins emitters to pay the social-environmental costs of fossil fuel burning. This would expedite green solar, wind, and next-generation nuclear energy sources. Individuals should conserve resources, waste less food, and eat a plant rich diet.
Slide ini berusaha untuk memancing dan memotivasi agar para pembaca untuk lebih meluangkan sedikit waktu berfikir tentang pemanasan global, penyebab, dampak serta bagaimana meminimalisasinya... dst
Through the project the students will learn that the temperature of Earth is increasing which is threat to human civilization.We should minimise the fuel consumption to reduce green house gases.The students will learn real life Mathematics .They will learn to predict the amount of ice amount of Arctic sea by using linear equation.
The amount of sea ice in ( sq km) is a linear function of year.
Some pictures are taken from www.nasaclimate.org
The project was selected for seminar " Development of quality teaching in Mathematics" at RIE, Ajmer under Poster presentation category .
As a result of our consumer culture lifestyle, we are polluting the earth and slowly changing its temperature. As a result, weather patterns will be less predictable and water level will rise significantly
Climate change is an extended change in the Earth’s regular pattern of atmospheric conditions and its fluctuations
Global warming is caused by an enhanced greenhouse effect mostly caused by anthropogenic activity
Social climate change & water crisisIan Mohammed
this z a ppt on climate change and water crisis
well, I would actually say that a few slides in da climate change r frm other ppt's bt most dem were searched by myself.
in da water crisis also I hv done da same....
for more info;s I hv also made a page of IMPORTANT references..
thank u
hope u'd lyk it
comment below
Personal reflections on the life of Carl Djerassi and his impact on my early life at Syntex, and later working with the Djerasi Resident's Artist Program in Woodside, California. He was a great man, and impacted us in so many ways. Be at rest, Carl.
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
Acetabularia Information For Class 9 .docxvaibhavrinwa19
Acetabularia acetabulum is a single-celled green alga that in its vegetative state is morphologically differentiated into a basal rhizoid and an axially elongated stalk, which bears whorls of branching hairs. The single diploid nucleus resides in the rhizoid.
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Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
Honest Reviews of Tim Han LMA Course Program.pptxtimhan337
Personal development courses are widely available today, with each one promising life-changing outcomes. Tim Han’s Life Mastery Achievers (LMA) Course has drawn a lot of interest. In addition to offering my frank assessment of Success Insider’s LMA Course, this piece examines the course’s effects via a variety of Tim Han LMA course reviews and Success Insider comments.
2. Overview and Goals
• What keeps earth warm?
• How does the Greenhouse work?
• What does Vostok tell us?
• Fossil fuel emissions and GHGs
• Current and future forcing, feedbacks
• What you can do be being smarter
4. The Greenhouse Effect
An overview of the Greenhouse Effect. From IPPC Working Group 1 contribution, Science of Climate Change, Second Assessment Report 1996
6. Carbon Dioxide
CO2 is the Greenhouse Gas that we follow the most as fossil fuels
contribute to it directly. CO2 also absorbs energy near 700 nm. A doubling
of CO2 would raise earth’s temperature by nearly 3 degrees Celsius.
7. Methane
• Potent GHG –
20x CO2 / mole
• 10 year half-life
• -OH combination
• Agriculture plus
mining/fracking
• Sleeping giant
(permafrost)
8. Water Vapor
• Water vapor is
actually the most
potent GHG (by
contribution)
• Reacts to changes in
surface temperature
• Key in feedbacks
10. Vostok Ice Core Data
•A perfect correlation between CO2, temperature, and sea level
•For every one ppm CO2, sea level rises 1 meter, temp rises .05 C (global)
•Process takes 100 years to add 1 ppm CO2, and reach thermal equilibrium
This is not just a correlation, this is a complex and dynamic process, with multiple
inputs. Touching one input affects all other inputs, and increases in temperature
becomes a further feedback and multiplier of these inputs.
11. GHGs and Vostok Data
James Kirchner Department of Earth and Planetary Science, University of California, Berkeley
13. The Thermostat Inputs
• CO2 - largest input
• CH4 – most potent input
• Water vapor – potent GHG
• Clouds – absorb / reflect
• Albedo – moderates energy
• Temperature
– Reacts to increased forcings
– Amplifies / induces other inputs
Earth’s Biogeochemical Thermostat (Cormia) Missing Feedbacks (Torn, Harte)
14. Dials on the Thermostat
CH4
GHGs Climate feedbacks
CO2
Water vapor
Clouds
Thermal inertia
Ice / albedo
Temperature
GHGs force energy into the planet, surface warming leads to feedbacks
15. 250 yrs of Carbon Emissions
It took 125 years to burn the first trillion barrels of oil – we’ll
burn the next trillion in less than 30 years – why should you care?
18. Carbon Emissions and CO2
• Carbon burned => CO2
• Linear from 1850 to 2000
- ppm CO2 =2.55 e10-4 *M tons C +
297 (r2*100=99.6%)
• ~ 50% of carbon goes
into atmospheric CO2
– 50% oceans / soil
• Trend is constant over
100 years – is this how
the biosphere will react
over the next 500 years?
Year C burned ppm CO2
1900 12307 295
1910 19174 300
1920 28050 305
1930 37914 310
1940 48566 310
1950 62324 315
1960 83453 320
1970 115935 325
1980 164083 340
1990 219365 350
2000 283373 370
2010 365000 390
24. Emission Trajectories
• We are adding 2+ ppm CO2 to the
atmosphere every year, and is increasing
• China passed US in GHGs emissions 5
years ago, and is now nearly double US
• Oil and hydrocarbons are actually plentiful
• Coal is still setting production records
• Population, wealth, and consumption
25. CO2 Trajectories to 2oC
http://www.pik-potsdam.de/news/press-releases/files/synthesis-report-web.pdf
26. Don’t have 20 years to Wait
• Trajectory to 450 ppm CO2 (2032-2035)
– 450 ppm CO2 => 2 deg C committed/forcing
– Amplifying feedbacks take us to 3+ deg C
• Ocean acidity 450 ppm CO2 => pH 8
– concentration [CO2] = [HCO3]
• Decisions made today impact 2035
– Still investing in carbon intensive energy
– At 2+ ppm/year, for 20+ years, 450 ppm CO2
27. Heat Storms in the US
Record heat across the US in summer, including an oppressive heat index
31. Ocean Acidification
CO2 dissolves in water to produce mild carbonic acid, which dissociates into bicarbonate and
carbonate ion. Increasing acidity removes carbonate ion from solution. At pH 8 (450 ppm CO2)
carbonate ion is under-saturated, shells will be difficult to form and stay stable.
http://www.ocean-acidification.net/FAQacidity.html
32. Arctic Sea Open Ice in 2015
http://arctic-news.blogspot.com/2012/11/arctic-sea-ice-set-to-collapse-in-2015.html
34. What you can do…
• Understand earth’s greenhouse process
• Decide if you want to make a difference
• Measure your carbon footprint!
• Develop your own climate action plan
• Talk to people about what you know
35. Summary
• Science isn’t holding us back
• Our collective behaviors are
• Technology isn’t (all) the answer
• Efficiency and energy intensity
• Making better carbon decisions
36. References/Attribution
• Climate Change Index -
http://www.igbp.net/4.56b5e28e137d8d8c09380002241.html
• 350.org
• CO2now.org
• EIA – http://www.eia.gov
• NOAA Climate Center
• https://www.ncdc.noaa.gov/sotc/global/2011/13
• http://www.esrl.noaa.gov/gmd/ccgg/trends/
• Skeptical Science - https://www.skepticalscience.com/
• International Arctic Research Center
• http://www.iarc.uaf.edu/
This presentation is intended solely for use/remix for educational purposes
Editor's Notes
The Keeling curve shows atmospheric CO2 measured at Mauna Loa in Hawaii from 1958 to 2013, rising from 315 to 395 ppm CO2, and showing the cycle in spring and fall when trees grow and then shed their leaves. The rate of increase, shown later in this presentation, has climbed from 1 ppm per year to 1.5 and now slightly over 2 ppm CO2 per year. At that rate, we will exceed 450 ppm CO2 by 2035, if not sooner.
The rate of increase, shown later in this presentation, has climbed from 1 ppm per year to 1.5 and now slightly over 2 ppm CO2 per year. At that rate, we will exceed 450 ppm CO2 by 2035, if not sooner. This is a key metric, as it sets a time window in which we have to act, as once 450 ppm CO2 is reached, it is unlikely that disastrous if not catastrophic consequences of climate change will be felt worldwide.
Estimates of future emissions are called ‘trajectories’ and in this slide represent three scenarios. One is a low emission strategy where we start a rapid reduction in carbon intensity beginning in 2020, and the ocean, atmosphere, and land begin to absorb carbon emissions, and atmospheric CO2 eventually stabilizes at ~400 ppm. In percentage terms, this has the highest probability of climate stabilization, but the least probability of actually happening. In the second scenario, carbon emissions also begin to decline in 2020, but not as fast, and the atmosphere rises in CO2 and then declines to ~ 450 ppm CO2. This has a 50% probability of success, but is probably not very likely, as most emission modeling shows an increase in energy intensity to ~2040 or later, and no decrease in carbon intensity until ~ 2035. As such, emissions rise as high as 500 ppm CO2, before stabilizing. This would be a climate disaster, but considering our nearly ineffectual governance, probably the most likely to occur.
While many people, including politicians and leaders, would wait until it was so painfully obvious that climate change was both real and a significant impact, we simply don’t have 20 years to ‘wait and see’. We have already seen significant impacts, (heat storms, drought, fires, and superstorms), at less than one degree Celsius of warming, and have been led to believe that 2 degrees is the edge of stability. On the contrary, other scientists have suggested that 450 ppm atmospheric CO2 is the threshold we should not cross, for both climate and ocean acidity (pH 8 and undersaturation of bicarbonate ion). Here are the facts:
We are headed right at 450 ppm CO2, currently at ~400 ppm CO2, and rising at a little over 2 ppm CO2 per year (a rate that is also increasing), and will reach that level by 2035, if not sooner.
There are two problems with 450 ppm CO2. First, the level of ‘committed warming’ will be ~ 2 degrees Celsius. Committed warming means the temperature of the ocean will eventually (~50 years) rise to that level. Second, as CO2 dissolves in the ocean (25% or more will end up there) the pH of the ocean decreases (from 8.15 to ~ 8.0) leading to undersaturation of bicarbonate ion, causing coral to dissolve (90% will be lost), and severely impacting plankton ability to form shells. Plankton are the base of the food chain. There is a possibility that amplifying feedbacks (albedo and methane hydrate destabilization) could cause us to warm even further, to 3 deg Celsius.
Energy investments in infrastructure typically have a 25 to 40 year lifetime (physical and economic depreciation), so investments in carbon intensive infrastructure today will last at least to at least 2035 and possibly to 2040. Decisions we make today (and in the first decade of the 21st Century) will likely take us well over 450 ppm CO2, and some fear as much as 500 ppm CO2.
For a number of years since 2009 and especially 2011-2013, the US has experienced both severe drought and heats storms, that combined with high humidity (heat index) have caused extensive suffering.
While it was a Category 2 storm off the coast of the Northeastern United States, the storm became the largest Atlantic hurricane on record (as measured by diameter, with winds spanning 1,100 miles (1,800 km)). Estimates as of June 2013 assess damage to have been over $68 billion (2013 USD), a total surpassed only by Hurricane Katrina. At least 286 people were killed along the path of the storm in seven countries (Wikipedia http://en.wikipedia.org/wiki/Hurricane_Sandy)
Ocean acidification is one of two wild cards, the other being methane hydrates, that could spell real trouble for human civilization. As CO2 is added to the atmosphere, about 25% also dissolves in the ocean, leading to production of bicarbonate ion, a natural process, but too much adds extra protons, which remove CO2 from solution (undersaturation). The consumption of carbonate ions impedes calcification.
CO2 + H2O => H2CO3 which becomes HCO3- + H+ (a weak acid) when too much CO2 dissolves, the added proton will seek out unprotonated CO32- bicarbonate ion. As atmospheric CO2 reaches 450 ppm, pH drops to ~8, and the concentration of CO2 exceeds bicarbonate ion, leading to undersaturation of the anion. That in turns will not only slow calcification, but can lead to dissolution of corals, and significant drop in phytoplankton, which may have already begun (Climos and Planktos) in the 20th Century. Losing the bottom of the food chain and a carbon dioxide pump in itself could lead to problems in both ocean productivity as well as future ability of the oceans to soak up CO2.
When CO2 dissolves in seawater, carbonic acid is produced via the reaction: CO2 + H2O => H2CO3
This carbonic acid dissociates in the water, releasing hydrogen ions and bicarbonate: H2CO3 => H+ + HCO3
The increase in the hydrogen ion concentration causes an increase in acidity, since acidity is defined by the pH scale, where pH = -log [H+] (so as hydrogen increases, the pH decreases). This log scale means that for every unit decrease on the pH scale, the hydrogen ion concentration has increased 10-fold.
One result of the release of hydrogen ions is that they combine with any carbonate ions in the water to form bicarbonate: H+ + CO32- <=> HCO3-
This removes carbonate ions from the water, making it more difficult for organisms to form the CaCO3 they need for their shells.
Arctic Sea Ice is diminishing at an accelerating rate, and the arctic may be ‘ice free’ in summer as early as 2015. This will have profound affects to albedo, adding energy to the arctic sea, destabilizing methane hydrates, and further adding to instability and/or erratic behavior of the jet stream and ocean currents. PIOMAS utilizes satellite tools for remote imaging of planet earth.
Methane hydrates are a wild card in the climate system, as they contain thousands of gigatons of methane complexed with water in frozen slurry, and only stable at very high pressure, and very cold temperatures. The stability of methane hydrates, called the hydrate stability zone, requires very cold temperatures, and great depths (thousands of feet). As shown in the chart, the Eastern Siberian Ice Shelf (ESAS) is especially prone to methane release as hydrates on the sea floor are in relatively shallow waters (hundreds of meters deep or less) with less than one or two degrees Celsius of margin between stability and release of methane. Recent studies (Natalia Shakova) of the Arctic Research Center have shown a doubling of methane release since 2009, from 8 teragrams (mega tons) to 17 teragrams. This translates to 6 ppb methane release, significant to see in the atmosphere. Scientists at the arctic research center are concerned about two scenarios, one where a sudden release of methane occurs that can temporarily ‘swamp’ hydroxyl ion, leading to a longer half-life and consequently a much higher GWP (Green House Warming Potential), and second, a sustained release of up to 50 gigatons (3.4% of the estimated 1400 gigatons stored under permafrost in the ESAS) which when multiplied by the GWP of (at least 20) is equal to 1,000 gigatons of carbon, what Hansen and others have calculated to be the total carbon budget to keep us under 2 degrees Celsius.
This presentation uses a Creative Commons copyright. This PowerPoint presentation was prepared for use by academic professionals, faculty and students to better understand and communicate climate change. It may be used as is, or remixed. Please use the references for images and other texts, and do not assume images are used with permission. If you wish to contact me, I can be reached at [email_address].