Diana Donlon - Introduction: Food and Farming
From Biodiversity for a Livable Climate conference: "Restoring Ecosystems to Reverse Global Warming"
Saturday November 22nd, 2014
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Diana Donlon - Introduction: Food and Farming
1. Food & Climate
Connecting the Dots
Diana Donlon
Cool Foods Campaign Director,
Center for Food Safety
Tufts University
November 22, 2014
2. The Global Food
System has been
ignored as a source
of GHGs. It has also
been overlooked as a
source of global
solutions. Climate
change is an
immediate threat to
food production.
Agro-ecological
practices, including
organic, are the
means by which we
will be able to
achieve food security
in an era of climate
disruption.
5. Deluge & Drought
• IPCC: Rainfall patterns will shift
• More intense precipitation
events by early 21st century
• Prolonged, acute drought by
late 21st century
• Estimated annual water deficit
is 160 billion tons
• The water needed to
produce 160 million tons of
grain.
• 533 million people are fed
with grain produced with
unsustainable water use.
6. Shifting Weather Patterns
• Earlier Springs, Warmer Winters
• Higher survival rates of pathogens
• Northern migration of invasive species
• Shifting spatial and temporal distributions of
pathogens
7. Rising Temperatures
• IPCC: 1982-2012 was likely
the warmest 30-year period of
the last 1,400 years.
• IPCC: Warming will continue
through 2100.
• More frequent, warmer
nights.
• Evaporation and
Evapotranspiration
9. Where is carbon going?
Carbon is constantly cycling through major pools.
• Too much carbon in the
atmosphere is heating the
planet.
• Too much carbon in the
ocean is causing it to
acidify.
• But, carbon in the soil not
only has the capacity to
absorb excess carbon, it is
beneficial.
10. Carbon is “plant
food” and plants
can rapidly
transfer carbon
from sky to soil.
11. Cool Foods sees soil health as the key to solving
multiple food and climate problems.
we need to rebuild
soil organic matter on a global scale.
13. is part of an emerging
community communicating
“soil solutions to climate problems.”
Thank you “Bio4Climate” for helping us
disseminate this critical message!
Editor's Notes
Scientists are reluctant to link specific climate events to climate change.
However, climate change is affecting the temperature and moisture under which storms are created.
Topography, regional weather systems, proximity to large bodies of water, and local land-use changes all affect regional climate changes.
However… many current and future impacts in regards to food production.
Generally areas with already high rainfall will experience more rain and areas with low rainfall will experience less rain.
http://www.earth-policy.org/index.php?/books/epr/Epr1_ss9
World Health Organization: We may be entering the 4th great transitional period of infectious diseases.
Early human settlements. Enabled endemic infective species to enter humans.
Early Eurasian civilizations came into military contact around 2000 years ago.
European expansions overseas.
http://www.who.int/globalchange/publications/climatechangechap6.pdf
Earlier IPCC reports predicted a net benefit to food production from climate change. The most recent report cites a large body of research that demonstrates how sensitive plants are to heat waves.
Evapotranspiration – is the process of transferring moisture from the earth to the atmosphere by evaporation of water and transpiration from plants.
These variations in CO2 come from the natural variations in the carbon cycle. Every year as temperatures warm, plants and forests soak up CO2 from the atmosphere dropping the atmospheric concentrations of CO2. 6-7 ppm per season.
Peat – which holds crazy amounts of carbon – so much so that it is used as fuel and emits more CO2 than coal or natural gas!