Author(s):

RR Upasani and Sheela Barla

Abstract: Natural events and human activities are believed to be contributing to an increase in average global temperatures. This is caused primarily by increase in greenhouse gases. In future decades, when climate change effects are more consistently felt, weed management requirements in agriculture and non-agricultural situations will change. Control of weeds is likely to be more difficult and more expensive under climate change. Some well known invasive species are likely increase their bio-geographical ranges, and other, relatively mild species may become aggressive invaders. Several studies have focused on the impact of climate change on crop productivity, but less attention has been given to the impact on weed management, particularly herbicide efficacy and its subsequent effects on the development of herbicide-resistant weeds.<strong> </strong>The mitigation of climate change vulnerability can be mitigated by storing carbon in soils which reduces atmospheric levels of carbon. Climate change has severe direct and indirect impacts on biodiversity and is predicted to be a dominant driver of future biodiversity loss; at the same time, the loss of biodiversity magnifies the adverse effects of climate change. Other management changes such as using cover crops, crop rotations instead of monocropping, reducing or eliminating fallow periods and avoiding burning of crop residues can lead to carbon sequestration in soil.

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