Global Warming - Causes, Impacts and Mitigation Strategies in Agriculture (original) (raw)

Global warming - a new global challenge in front of agricultural scientists, affecting almost all the climatic parameters involving air temperature and rainfall intensity and distributions. Elevated levels of greenhouse gases (GHGs) viz. carbon dioxide, methane, nitrous oxide etc. are only because of faulty agricultural practices viz. intensive tilling, burning of crop residues, which further adversely affecting both land and water productivity. As per one projection that global surface air temperatures may increase by 4.0–5.8°C in upcoming few decades which offset the likely benefits of increasing atmospheric concentrations of carbon dioxide on crop plants. Over space and time, new environmental conditions created which might be responsible for frequent droughts, higher temperatures, flooding, salinity, increased carbon dioxide levels, rise in sea-level, irregular rainfall patterns and shifting of pest dynamics etc. Therefore, global warming cycle needs to break down through forest...