UN food security expert warns about impact of climate change
A U.N. expert is warning that more extreme weather, higher temperatures, floods, droughts and rising sea levels linked to climate change are threatening people's access to food over the long term.
In a statement on Tuesday before a U.N. climate conference in Paris starting Nov. 30, she recommended a shift from large-scale, industrial agriculture to "agro-ecology" that supports the local food movement, small-scale farmers and the environment.
Most climate scientists say the climate is changing largely because of the buildup of heat-trapping gases from the burning of coal, oil and gas. Some public officials and a few climate scientists disagree.
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