Download A global conversation - UK College of Agriculture

A global conversation
Touching on evidence of
climate change
Global surface temperatures
for five datasets
Adjusted to remove
variation due to:
•El Niño/La Niña
•Volcanic particulates
•Solar irradiance
Foster, 2011. Global temperature evolution 1979–2010. Environ. Res. Lett. 6 (2011) 044022
Northern hemisphere temperatures
since Year 200 AD, showing how
unusual is this rate of warming
Mann et al, 2008. Proxy-based reconstructions of hemispheric and global surface temperature variations over
the past two millennia. PNAS 105;13252, doi10.1073pnas.0805721105
Upper ocean heat content
http://oceans.pmel.noaa.gov/
Based on Lyman et al., 2010. Robust warming of the global upper ocean, Nature Vol 465, 20 May 2010, doi:10.1038/nature09043
Many glaciers are melting
South Cascade Glacier in the state of Washington. Photo by Andrew Fountain. From
Understanding and Responding to Climate Change, National Academy of Sciences, 2008
http://www.epa.gov/climatechange/indicators/pdfs/CI-snow-and-ice.pdf
Ocean CO2
NASA
Sea level trends from NASA
http://earthobservatory.nasa.gov/Features/OceanCooling/page5.php
Peer-reviewed science
overwhelmingly indicates that:


Climate is changing globally
This change is primarily (but not
exclusively) due to greenhouse gases,
especially CO2
Frost is more likely on…
Cloudy night
Clear night
http://jenklee.com/index.php?/clear-night/
http://arambhusal.sulekha.com/albums/bydate/2008-0515/slideshow/149496.htm
Insurance companies
Green color=low carbon output
per ton of food produced
Solutions for a cultivated planet. Nature 20 Oct 2011
What do climate models
project for Kentucky?
http://www.climatewizard.org/
Projection for 2080: Change in
temperature (Dec-Feb)
Projection for 2080: Change in
temperature (March-May)
Projection for 2080: Change in
temperature (June-August)
Projection for 2080: Change in
precipitation (Dec-Feb)
Projection for 2080: Change in
precipitation (March-May)
Projection for 2080: Change in
precipitation (June-August)
Projection for 2080: Change in
temperature (June-August)
Projection for 2080: Change in
precipitation (June-August)
Effects of climate change on
Kentucky agriculture
Impact of climate trends on
corn production, 1980-2008
Climate Trends and Global Crop Production Since 1980, Science 333:616, 2011
Impact of climate trends on
soybean production, 1980-2008
Climate Trends and Global Crop Production Since 1980, Science 333:616, 2011
Impact of climate trends on
wheat production, 1980-2008
Climate Trends and Global Crop Production Since 1980, Science 333:616, 2011
Published by The Consultative Group on International Agricultural Research, Research Program on
Climate Change, Agriculture and Food Security, 2011
Forages


C4 grasses will increase
Yield and quality may be similar
Areas suitable for premium
wine production
Purdue Climate Change Center, 2008
New crop/market opportunities?
http://www.extension.org/pages/18358/introduction-to-high-tunnels
Pests and disease will likely
increase
Purdue Climate Change
Center, 2008
What changes in nitrogen
fertilization will occur?
USDA GHG Inventory, 1990-2008
(published in June, 2011)
What changes in animal production
should we prepare for?
http://www.sswm.info/category/implementation-tools/wastewater-treatment/hardware/site-storage-and-treatments/anaerobic-di
“Chance favors only the
prepared mind”
SCIENTIFIC REPORTS | 1 : 66 | DOI: 10.1038/srep00066
Quote of Louis Pasteur