This article appears in the October 2004 Center for Rural Affairs newsletter and can be found at http://www.cfra.org/newsletter/current.htm
Risk for Agriculture in Climate Change
Biggest winner in a carbon dioxide-rich atmosphere may be farmers’
weeds
In a significant shift, the Bush Administration has issued a new report
attributing hotter global temperatures over the last 30 years to atmospheric
gases released by human activity – and suggesting troubling consequences for
agriculture.
The report is based on the growing body of federal research
on climate change. That research cites a challenge for farmers under higher
concentrations of carbon dioxide – intensified weed problems. Carbon dioxide is
the leading greenhouse gas and is released by burning fossil fuels, removing
forests, and breaking down organic matter.
Plants grow better in a carbon
dioxide rich atmosphere. But the study found that weeds benefit more than most
crops and thus will become more competitive as carbon dioxide levels
increase.
The report reminds us how much farmers and ranchers have at
stake in climate change. Earlier studies predicted increased extreme weather
events and shifts in rainfall. Farmers and ranchers face serious risks in
climate change – arguably more than any other industry with the possible
exception of the insurance industry.
Yet, some agricultural organizations
have rallied farmers and ranchers to oppose efforts to address climate change,
fearing efforts to curb emissions would lead to increased fuel and fertilizer
costs. That is short sighted.
Farmers and ranchers have a profound
interest in addressing climate change. Further, it is a mistake to conclude that
any action to address climate change will necessarily impose burdensome
short-term costs on farmers and ranchers.
Several years ago, the Center
for Rural Affairs convened a task force of farmers and ranchers to study the
issue. Their report Climate Change and Agriculture concluded that agriculture
could contribute to reducing greenhouse gases through measures that don’t impose
high costs, but to the contrary save money – better fertilizer management and
fuel conservation. (Climate
Change and Agriculture is available on our website.)
They saw new
opportunities for farmers and ranchers to be paid for building soil organic
matter (carbon), as a means of reducing the carbon dioxide level in the
atmosphere. In addition, rural areas are enjoying some new economic activity
from the growth of wind power generation as an alternative to fossil fuel
powered electric plants. You can find the Bush Administration report at www.climatescience.gov
Contact: Chuck Hassebrook, [log in to unmask]
for more information.