Presentation is loading. Please wait.

Presentation is loading. Please wait.

CLIMATE CHANGE Data Driven Analysis.

Published byAlisha Greene Modified over 6 years ago

Similar presentations

Presentation on theme: "CLIMATE CHANGE Data Driven Analysis."— Presentation transcript:

1 CLIMATE CHANGE Data Driven Analysis

2 Earth’s Climate Has Undergone Many Changes
Warm Cold Icy Not icy How do they know past climates? Recent – data records Historic records – further into human history: droughts, floods, etc Paleoclimates – deduce from ‘proxies’: Ice cores, tree rings, coral growth, sediment deposits (CaCO3) Cambrian ‘explosion’ of life Today

3 Temps Vary, but the Trend is Clear: a Warming Atmosphere

4 Increasing Rates Of Warming
Compare line slope

5 Temperature is correlated with CO2
Year-by-year atmospheric CO2

6 Fossil fuel use > CO2 byproduct > Warming
Temperature Fossil Fuel use Lagged means 25 time lag (time for atmospheric build up)

7 Compounding factor: permafrost methane
Methane released as soil thaws from the atmosphere. Methane's lifetime in the atmosphere is much shorter than carbon dioxide (CO2), but CH4 is more efficient at trapping radiation than CO2. Pound for pound, the comparative impact of CH4 on climate change is over 20 times greater than CO2 Impact of CH4 is 20x that of CO2

8 Factoring in all predicted greenhouse
gas concentrations Same trend Different models The UN Climate Change Report (1/10)

9 well, not quite

10 RAMIFICATIONS OF WARMING

11 Warming Oceans 3 studies, same pattern healthy vs bleached reef

12 Reduced ice cover at the north pole

13 Corresponding change in sea level
Past 300 years 20th century

14 Warming Land Glaciers receding Earlier snow melt

15 Ocean Acidification CO2 + H2O -> carbonic acid

16 Ecosystem Change both habitat & biota
Alpine chipmunk Neotamias alpinus Grinnell resurvey project a century of change

17 Sixth Mass Extinction of Life on Earth
Golden Toad Incilius periglenes Grinnell resurvey project a century of change

18 Despite the evidence not all are convinced
• International consensus 130 nations • Scientific consensus 1250 scientists • Extensive studies 12,000 papers • Exhaustive peer review 90,000 comments U.S. Senator J. Imhofe, OK Environmental and Public Works Committee Author: The Greatest Hoax*: How the Global Warming Conspiracy Threatens Your Future. (2012) skeptical –> raise questions deny –> refuse The public debate around climate change is no longer about science—it’s about values, culture, and ideology. *a deliberately fabricated falsehood made to masquerade as truth. Gallup poll Imhofe is not alone Links Why? An explanation in the Stanford Social Review

19

20 How to proceed? Opposing claims: • Global warming • No global warming
Opposing actions: • act now to reduce greenhouse gas emissions • take no action 1 3 4 2 Discuss/record on whiteboards the consequences of each pair on: • the environment • biodiversity • economies 1 3 2 4

21 http://www. livescience. com/common/media/video/player. php
(6 min) (6min) Look for more at How Stuff Works Sci Amer Frontiers (22 min)

Download ppt "CLIMATE CHANGE Data Driven Analysis."

Similar presentations

5.2: The Greenhouse Effect. 5.2.1: Carbon cycle.

5.2: The Greenhouse Effect : Carbon cycle.
Climate Change: Science and Modeling John Paul Gonzales Project GUTS Teacher PD 6 January 2011.

Climate Change: Science and Modeling John Paul Gonzales Project GUTS Teacher PD 6 January 2011.
Climate change can be discussed in short, medium and long timescales. Short-term (recent) climate change is on a timescale of decades, an example would.

Climate change can be discussed in short, medium and long timescales. Short-term (recent) climate change is on a timescale of decades, an example would.
4.4 Climate Change.

4.4 Climate Change.
Air Quality and Climate Change. Coal and Oil Formation Both are Fossil Fuels: remains of plants and animals that died anywhere from 400 million to 1 million.

Air Quality and Climate Change. Coal and Oil Formation Both are Fossil Fuels: remains of plants and animals that died anywhere from 400 million to 1 million.
Evidence of Climate Change

Evidence of Climate Change
Science, Society and Solutions

Science, Society and Solutions
Climate Review. Climate Long term average conditions of a region (occurs over many years) –Usually described in terms of average temperatures, precipitation,

Climate Review. Climate Long term average conditions of a region (occurs over many years) –Usually described in terms of average temperatures, precipitation,
Chapter 20 Global Climate Change. Climate Change Terminology  Greenhouse Gas  Gas that absorbs infrared radiation  Positive Feedback  Change in some.

Chapter 20 Global Climate Change. Climate Change Terminology  Greenhouse Gas  Gas that absorbs infrared radiation  Positive Feedback  Change in some.
Carbon cycle and Human activity. Carbon cycle Carbon cycles though the atmosphere, living things, soils, and the ocean.Carbon cycles though the atmosphere,

Carbon cycle and Human activity. Carbon cycle Carbon cycles though the atmosphere, living things, soils, and the ocean.Carbon cycles though the atmosphere,
Introducing alien ecosystem engineers to Round Island, Mauritius Species lost – 2 giant tortoises Role – dispersal of herbivore adapted seeds Surrogate.

Introducing alien ecosystem engineers to Round Island, Mauritius Species lost – 2 giant tortoises Role – dispersal of herbivore adapted seeds Surrogate.
Warm-Up  What human process uses the most water on the planet?  How can farmers save water?

Warm-Up  What human process uses the most water on the planet?  How can farmers save water?
Global Warming Chapter 13 Section 3. Learning Targets Students will understand the importance of the greenhouse effect. Students will understand why the.

Global Warming Chapter 13 Section 3. Learning Targets Students will understand the importance of the greenhouse effect. Students will understand why the.
Chapter 20 Global Climate Change. Climate Change Terminology  Greenhouse Gas  Gas that absorbs infrared radiation  Positive Feedback  Change in some.

Chapter 20 Global Climate Change. Climate Change Terminology  Greenhouse Gas  Gas that absorbs infrared radiation  Positive Feedback  Change in some.
Your “Do Now”5/25 Take ½ sheet of paper Write down 5 things you remember from the visit by the GVSU scientists yesterday.

Your “Do Now”5/25 Take ½ sheet of paper Write down 5 things you remember from the visit by the GVSU scientists yesterday.
Climate Change November 4, 2014. Global Climate Change Global Warming – describes a rapid increase in the temperature of Earth’s surface, water, and atmosphere,

Climate Change November 4, Global Climate Change Global Warming – describes a rapid increase in the temperature of Earth’s surface, water, and atmosphere,
 Journal: Compare and contrast the carbon cycle and the nitrogen cycle.

 Journal: Compare and contrast the carbon cycle and the nitrogen cycle.
Evidence of Climate Change page 18 We all have heard the term ‘global warming’ but is there any evidence that our climate is changing?

Evidence of Climate Change page 18 We all have heard the term ‘global warming’ but is there any evidence that our climate is changing?
Section 16.2- Climate Change According to NASA’s Goddard Institute for Space Studies, 2009 tied for second warmest year on record, just behind 2005. The.

Section Climate Change According to NASA’s Goddard Institute for Space Studies, 2009 tied for second warmest year on record, just behind The.
Climate Change Overview: Key Concepts. Climate vs. Weather What is weather? – Conditions of the atmosphere over a short period of time (e.g. day- to-day).

Climate Change Overview: Key Concepts. Climate vs. Weather What is weather? – Conditions of the atmosphere over a short period of time (e.g. day- to-day).

Similar presentations

Ads by Google