UCC Oct 10th 2013

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Climate Change in the Rogue Valley:

UCC Presentation October 10

th

2013

Alan Journet alanjournet@gmail.com

/ 541-301-4107

Professor emeritus,

Southeast Missouri State University

Now living in Applegate Valley

Co-Facilitator http://socan.info

For ppt: http://socan.info

 Projects  Presentation Project  Scroll down to ‘SOCAN Presentations Delivered’

Global Temperatures 1880 – 2012 cf 1951-1980

1998

2012

1.3⁰F

GISS = Goddard Institute for

Space Studies http://data.giss.nasa.gov/gistemp/graphs_v3/Fig.A.gif

U.S. Temperatures 1880 – 2011

Goddard Institute for Space Studies

July 2012 was hottest month in contiguous US since record-keeping began in 1895

0.9

Departure from

1951- 1980 mean

1.8

During 2012 - 19 states set heat records:

34,008 weather stations recorded record highs

6,664 weather stations recorded record lows http://data.giss.nasa.gov/gistemp/graphs_v3/Fig.D.gif

2012 - Continental

2.7

U.S. 1.03

⁰ F above previous record.

1.8

0.9

0

⁰F

Projected Temperature Trends in

Pacific Northwest to 2100

Projections

Unknown

Unmanageable

Historic Data Unavoidable http://cses.washington.edu/db/pdf/wacciach1scenarios642.pdf

1900

1961-1990

Ave – 50.03

Ave – 50.03

0

F

F

Winter Ave – 38.10

Winter Ave – 38.10

0

0

F

0

F

F

F

2000 2099

Rogue Valley Temperature History and Projections

Seasonal Patterns

compared to 1961-1990 average

2035-2045

Average

1.5 – 4.0

⁰ F

2075-2085

Average

4.3 -8.2

⁰ F

Winter

1– 3.5

⁰ F

Summer

1 – 6.0

⁰ F

August 1.3 – 7.8

⁰ F

Winter

3.4 -6.3

⁰ F

Summer

5.6 – 11.8

⁰ F

August 6.7 – 16.8

⁰ F

In addition to averages – extremes are important….

Projected Extreme 1 in 20 year Heat Events by 2080-2099

Global Climate Change Impacts in the U.S.

Projected Days > 100

o

F

Global Climate Change Impacts in the U.S.

Projected

Precipitation

Seasonal

Pattern –

High

Emissions Scenarios

Global Climate Change Impacts in the U.S.

Crater Lake (May, 2011)

Declining Mid-Elevation Snowfall 7,000 – 8,000 ft

25% Reduction

700

600

500

400

300

200

100

0

1930s

Average annual snowfall at Crater Lake HQ

1940s y = -24,595x + 639,93

1950s 1960s 1970s

From when data were first collected

1980s 1990s 2000s

N. California 1950 - 2000

Below 7500’ 13% decline

Above 7500’ 12% increase

Applegate Lake

Source: Crater Lake National Park

Courtesy Bill Bradbury

Courtesy Bill Bradbury

Courtesy Bill Bradbury

Courtesy Bill Bradbury

Courtesy Bill Bradbury

For Grapes

Jackson County Irrigation Ditches are critical for agricultural productivity and Pears

CO

2

, Temperature and Crop Production

Increasing CO

2 may be positive, but increasing temp is negative

Global Climate Change Impacts in the U.S.

Historical Apr – Oct

Average 1961-1990

Projected Range for

2035 - 2045

Projected Range for

2075 - 2085

BC

BC

BC

A

I

I

I

I

BC

I – Gamay Noir

BC

BC

A

BC A

I – Muscat

BC A

A http://www.sou.edu/envirostudies/gjones_docs/GJones%20Climate%20Change%20Geoscience

%20Canada.pdf

From Interstate 5 –

Saturday July 27 th

Wolf Creek Area

North of Grants Pass

Medford Mail Tribune – Glendale Fire July 29 th

This could be worst fire season in 10 years

Western Wildfires & Climate Change

http://www.ucsusa.org/global_warming/science_and_impacts/impacts/infographic-wildfires-climate-change.html

Western Wildfires & Climate Change

cv http://www.ucsusa.org/global_warming/science_and_impacts/impacts/infographic-wildfires-climate-change.html

Western Wildfires & Climate Change

http://www.ucsusa.org/global_warming/science_and_impacts/impacts/infographic-wildfires-climate-change.html

Natural Community Condition Trends

1 Elimination of spruce/fir/hemlock forest,

2 Reduction in Douglas fir dominated association,

3 Possible expansion of Ponderosa pine association,

4 Expansion of Oregon oak chapparal association,

5 Expansion of shrubland and grassland.

2013 Intergovernmental Panel on Climate Change IPCC

Established in 1988 by U.N. Environment Programme and World Meteorological Union. Composed of thousands of atmospheric scientists and climate scientists the world who review literature, evaluate what is happening, and provide consensus summaries. Reported 1990, 1995, 2001, 2007, and now 201/2014.

• AR-5 Fifth Assessment Report 2013-2014

Warming of the climate system is unequivocal, and since the 1950s, many of the observed changes are unprecedented over decades to millennia. The atmosphere and ocean have warmed, the amounts of snow and ice have diminished, sea level has risen, and the concentrations of greenhouse gases have increased.

Atmosphere:

“Each of the last three decades has been successively warmer at the Earth’s surface than any preceding decade since 1850 …. In the Northern Hemisphere,

1983–2012 was likely the warmest 30-year period of the last 1400 years.”

Likely = 66 – 100%

2013 Intergovernmental Panel on Climate Change IPCC

“Due to natural variability, trends based on short records are very sensitive to the beginning and end dates and do not in general reflect long-term climate trends. As one example, the rate of warming over the past 15 years (1998–

2012; 0.05 [–0.05 to +0.15] °C per decade), which begins with a strong El Niño, is smaller than the rate calculated since 1951 (1951–2012; 0.12 [0.08 to 0.14]

°C per decade).

“It is virtually certain that globally the troposphere has warmed since the mid-

20th century.”

Virtually Certain = 99 – 100%

97% of Practicing Climate Scientists agree with 2007 IPCC

– 2009, 2010, 2013 peer-reviewed studies

2008 The National Intelligence Council: National Security Implications of

Global Climate Change to 2030:

Drought, severe weather, flooding and refugees, water and resource shortages.

The Problem?

2000 Global Emissions

• Greenhouse gases released by human activity:

• Carbon dioxide, methane, oxides of nitrogen.

• Individual Action

B UT

The necessary but insufficient condition

Approximately 75% > 75%

23 X CO

2

296 X CO

2 http://en.wikipedia.org/wiki/Greenhouse_gas

What produces carbon emissions locally?**

Good Co, Eugene, OR GHG Inventory http://rvcog.org/cogboard/2011/Dec_14/RVCOG-REA-Final_PPT-121511.pdf

Essence of A Solution

It’s all about energy production/consumption

• Reduce energy use – especially when energy is generated by burning fossil fuels (coal, oil, gas);

• Especially reduce fossil fuel based transportation and electricity generation.

• Reduce, reuse, recycle.

• Individual Action

A Necessary but Insufficient Condision

Let’s think now about the economics of addressing climate change…

Positive =

Cost

Actions here cost us money

Cost in

€ per ton

= $1.4

Increasing CO

2

Mitigation

Actions here save us money

(Negative =

Savings)

Economic Study Undertaken by McKinsey Consulting Firm © 2010

Reducing carbon emissions

Note II - Role of

Technology

Note I –

China = 8.24 Gt

U.S. = 5.8 Gt

Combined 14 Gt

Impact of the Financial Crisis on Carbon Economics © 2010;

Per-Anders Enkvist, Jens Dinkel, Charles Lin, McKinsey & Company

Federal Solutions

• How would a carbon tax work?

• Levies tax at the point of origin (mine, well, extraction site),

• The annually increasing tax (or fee) would discourage carbon fuels and make carbon-free alternatives more cost-effective and competitive,

• Revenue could be used to promote R&D of alternative fuels or be returned to taxpayers as a dividend,

• Since total emissions are not regulated, effectiveness will depend on the pressures imposed by the tax, and the guess of a ‘correct’ tax to achieve a determined goal.

• It IS a tax….

• But we are all currently paying a tax in our suffering from severe weather, droughts, heat waves, wildfires, water shortages, health consequences.

http://socan.info

Co-Facilitators:

Alan Journet alanjournet@gmail.com

Kathy Conway kathleendconway@gmail.com

MEETINGS: Last Tuesday of the month (except September 17 th )

Special Topic Presentation 6:00 – 6:30 pm

General Meeting: 6:30 – 8:00 pm

Medford Pubic Library, 205 S. Central Ave.

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