Wednesday 21 August 2019 ,
Latest News
Aug 21 grenade attack case appeal hearing to start this year: Minister | Nation observing Aug 21 grenade attack anniversary | Strict supervision must to protect Meghna River: ADB | Article 370 is internal issue of India: Bangladesh | Trump talks mediation on Kashmir again |
31 July, 2019 11:55:53 AM

Print

Farmers can help slow climate change

Global agriculture is at serious risk from global warming and climate change driven by profligate fossil fuel combustion
PROF. SARWAR MD. SAIFULLAH KHALED
Farmers can help slow climate change

Achieving a boost in harvests and to slow climate change is both necessary and beneficial for the farmers in particular and the global public in general. In consequence, it is necessary to find a way out to meet such goals to make the world countries affluent and at the same time the world a safe and secure place to live in.

Hopefully, as per Climate News Network, two new studies have confirmed that farmers can win both ways – achieving a boost in harvests and helping to slow climate change. One study confirms that they can successfully farm with techniques that can help slow global warming and add to the store of carbon sequestered in the soils around the globe. And a second study confirms that a range of tested and sustainable practices is already stepping up yields in small farms worldwide, while dramatically reducing greenhouse gas emissions, soil erosion and pesticide use. Both the studies address a planetary dilemma.
Global agriculture is at serious risk from global warming and climate change driven by profligate fossil fuel combustion. But global agriculture – powered by greenhouse gas- emitting fossil fuels, ploughing, pesticides and herbicides – is also helping to drive global warming and climate change. The researchers have persistently argued that it should be possible both to feed the 9 billion global people expected by 2050, and to contain global warming to no more than 2 degree Celsius by 2100. Such advances can be achieved only by massive changes in diet and expectations. But both the new studies focus on what is both practicable and possible right now.

In the journal Science Advances, the researchers from the United States (US) hold the view that they have identified a range of well-established farming practices that – if adopted by everybody – could capture enough carbon from the atmosphere. This captured carbon may be stored in the world's soils at a rate that could make a significant difference. Simple approaches such as covering crops, more thoughtful use of grazing animals, the planting of legumes on rangelands and so on – could, if coupled with dramatic reductions in carbon dioxide emissions, notionally add as much as 1.78 billion tonnes of carbon from the atmosphere to soils. These measures will lower global temperatures by 0.26 degree Celsius. Since 1880, global average temperatures have already risen by about 1 degree Celsius.

More tentatively, they suggest that if farmers added biochar – the residue of crops burned to make charcoal – to their soils, this could reduce global warming by as much as 0.46 degree Celsius. An ecosystem ecologist at the University of California at Berkeley, and one of the authors of the study Whendee Silver said that these are very commonly used approaches, though people do not use them to sequester carbon – they are doing it for other reasons. Any time they increase the organic content of soils; they are generally increasing the fertility, water-holding capacity, sustainability, decreasing erosion and increasing general resilience to climate change. Sequestering carbon is a side benefit.

Scientists from five nations reported in the journal Nature Sustainability that they could show that farming practices that show consideration for the global environment can and do deliver more food at lower costs. Enthusiasts and environmentalists have been promoting "organic" or sustainable farming for decades. They looked at data and reports from 400 sustainable intensification initiatives – agro-forestry is one example – used on either more than 10,000 farms or over 10,000 hectares of farmland. Altogether, their survey covered an estimated 163 million farms. And their study showed that productivity went up, biodiversity and ecosystem services were conserved, yet costs were down.

A soil scientist at Washington State University in the US, and one of the authors of the study John Reganold holds the view that "Although we have a long way to go, I'm impressed by how far farmers across the world and especially in less developed countries have come in moving our food-production systems in a healthy direction". So stronger government policies across the globe including Bangladesh are now needed to support the greater adoption of sustainable intensification farming systems so that the United Nations Sustainable Development Goals endorsed by all members of the United Nations (UN) are met by 2030.

Stronger government policies across the world countries to support the greater adoption of sustainable intensification farming systems will help provide sufficient and nutritious food for all, while minimising environmental impact and enabling producers to earn a decent living. This is especially more important for farm based less developed climate vulnerable countries like Bangladesh. Such countries need more farm outputs to alleviate farmers’ poverty in particular and poverty of the people of such farm based countries in general. And at the same time it is urgent for them to contain the growing impact and danger due to the on going climate change in such countries.  

The writer is a retired Professor of Economics, BCS General Education Cadre

Comments

Poll
Today's Question »
State minister for power Nasrul Hamid yesterday said everyone to have access to electricity by June. Do you think the feat achievable by the timeframe?
 Yes
 No
 No Comment
Yes 47.3%
No 48.7%
No Comment 4.1%
Video
More Opinion Stories
A small insect called mosquito can create havoc Apparently tiny but in fact a dangerous insects called mosquitoes can transmit deadly diseases like malaria, zika, dengue, chikungunia and various forms of encephalitis. The world famous philanthropist and entrepreneur Bill Gates,…

Copyright © All right reserved.

Editor : M. Shamsur Rahman

Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Editor : M. Shamsur Rahman
Published by the Editor on behalf of Independent Publications Limited at Media Printers, 446/H, Tejgaon I/A, Dhaka-1215.
Editorial, News & Commercial Offices : Beximco Media Complex, 149-150 Tejgaon I/A, Dhaka-1208, Bangladesh. GPO Box No. 934, Dhaka-1000.

Disclaimer & Privacy Policy
....................................................
About Us
....................................................
Contact Us
....................................................
Advertisement
....................................................
Subscription

Powered by : Frog Hosting