Climate Change and its Impact on Agriculture: Challenges for the 21st Century
Authors: Siyi J. Feng, Amy D. Hagerman, Brian H. Hurd, Bruce A. McCarl, Jian H. Mu, Wei W. Wang, Texas A&M University, Texas, and others
Abstract: The United Nations Framework Convention on Climate Change cites food production maintenance as one of the key motivations for involvement with climate change and efforts to stabilize greenhouse gas (GHG) emissions (UNFCCC, 1992). Climate factors (temperature, precipitation and other climatic attributes) are primary determinants of agricultural productivity; in turn, food and fiber production by the agricultural and forestry (AF) sectors is essential for human welfare. As such, climate change poses a challenge and will play an important role in maintaining a secure food supply. Examining AF vulnerability to climate change is a multi faceted endeavor. In addition to examining direct and indirect effects of an altered climate on agricultural and forestry productivity, one must also examine the impacts of mitigation and adaptation efforts. Climate change effects, adaptation and mitigation (CCEAM) have both local and national effects. Locally, climate change and investments in adaptation and mitigation likely alter productivity and divert resources. Additionally, CCEAM may alter regional or national production patterns plus food and fiber supplies, thereby shifting comparative advantage.
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