Online edition of India's National Newspaper
Thursday, Nov 19, 2009
Google



Sci Tech
Published on Thursdays

Features: Magazine | Literary Review | Life | Metro Plus | Open Page | Education Plus | Book Review | Business | SciTech | NXg | Friday Review | Cinema Plus | Young World | Property Plus | Quest |

Sci Tech

Printer Friendly Page Send this Article to a Friend

Solutions to global warming for poor farmers

The world must brace itself for a brewing ‘perfect storm’ — a confluence of crises brought about by climate change, desertification, high energy demand and an exploding population.

Loud alarm

This wake up call comes from the International Crops Research Institute for the Semi-Arid Tropics (ICRISAT), which has a repository of crop varieties that could successfully grow in a warmer world.

Dr William Dar, Director General of ICRISAT says, “The world is facing a perfect storm, with a number of huge problems converging around us.

“At the centre of this storm are the poor people, who depend on agriculture for survival.”

Back to basics

According to Dr. Dar, warmer temperatures, persistent droughts and erratic rainfall could send poor farmers right back to the bottom of the development ladder.

Scientists predict that climate change will adversely affect agricultural productivity and human well-being.

Crop yields are expected to decline, particularly at lower latitudes in the dry and tropical regions, increasing the risk of hunger.

On the other hand, agriculture releases carbon dioxide, methane and nitrous oxide into the atmosphere, amounting to around 10 to12 per cent of global greenhouse gas emissions annually.

The challenge is therefore to design an agriculture that adapts to the changes in climate, as well as reduces greenhouse emissions.

Banking on its scientific work, ICRISAT has solutions that could help reduce the vulnerability of dryland farmers, and increase their resilience to the perfect storm.

Different crops

ICRISAT works on crops (pearl millet, sorghum, chickpea, pigeonpea and groundnut) that have several natural advantages in a changing climate.

Its pearl millet and sorghum have high salinity tolerance. Pearl millet hybrids and flowers and produces seeds even in hot weather and improved sorghum lines are capable of producing good yields in warmer temperatures. Its short-duration groundnut varieties have good drought tolerance.

Likewise, ICRISAT has developed extra-early (maturing in 85 to 90 days) and super-early (maturing in 75 to 80 days) chickpea varieties that can escape terminal drought.

Printer friendly page  
Send this article to Friends by E-Mail



Sci Tech

Features: Magazine | Literary Review | Life | Metro Plus | Open Page | Education Plus | Book Review | Business | SciTech | NXg | Friday Review | Cinema Plus | Young World | Property Plus | Quest |


The Hindu Group: Home | About Us | Copyright | Archives | Contacts | Subscription
Group Sites: The Hindu | Business Line | Sportstar | Frontline | Publications | eBooks | Images | Home |

Comments to : thehindu@vsnl.com   Copyright © 2009, The Hindu
Republication or redissemination of the contents of this screen are expressly prohibited without the written consent of The Hindu