Helvetas supports many projects in the field of agriculture with the objective of improving the income and living conditions of small-scale farmers and increasing food security. It helps farmers and their organisations to develop their farming techniques, farm management and the processing and marketing of agricultural products, and to establish sustainable value chains.
Helvetas supports women and men as they plan and adopt measures to reduce the risks and impacts of climate variability and change their systems through promoting and disseminating innovative and appropriate approaches that make their livelihoods more climate-resilient.
How climate variability and change affect agriculture
High levels of CO2 have a stimulatory effect in most crops, while elevated tropospheric ozone (O3) levels depress crop yields. This raises the risk of spread of invasive weeds and increased competitiveness with crops, as well as reducing the effectiveness of herbicides. While evidence indicates that there may be changes in the geographical ranges of pests and diseases, the correlation with changes in disease intensity is not so clear. For the major crops in tropical and temperate regions (wheat, rice, and maize), climate change without adaptation will have a negative impact on production if there are local temperature increases of 2°C or more above late- 20th-century levels, although specific areas may benefit (IPCC, 2014). «Such impacts are expected to disproportionately affect the welfare of the rural poor such as female-headed households and those with limited access to land, modern agricultural inputs, infrastructure and education» (IPCC, 2014).
There is a range of existing potential adaptation options in both food production and across all food system activities. The capacities of communities to adapt to climate change and increasing risks are limited in many regions. They often lack knowledge and have limited assets and risk-taking capacity. Strengthening the adaptive capacity in the agricultural sector is crucial, given that nearly 70 per cent of people in developing countries live in rural areas where agriculture is the main livelihood activity. There is an urgent need to move from autonomous (spontaneous and ad hoc) to planned adaptation in order to strengthen communities’ ability to deal with these changes.
Climate change and agriculture – a twofold relationship
Rapid and uncertain changes in rainfall patterns and higher temperatures can also result in geographical shifts of crops and cropping patterns through changes in seasonal extremes, as certain species can no longer be cultivated in certain regions. Although in the short term the introduction of new crops might represent an opportunity in certain regions or countries, the longerterm impacts of climate change are expected to lead to an overall decrease in production (IPCC, 2014).
According to the IPCC, the three main causes of the increase in greenhouse gases (GHG) observed over the past 250 years have been fossil fuels, land use and agriculture. It is generally agreed that about 24 per cent of CO2 emissions are produced by agricultural sources, mainly deforestation, land conversion and ploughing, the use of fossil fuel-based fertilisers and the burning of biomass (IPCC, 2014). Most of the methane (CH4) in the atmosphere comes from domestic ruminants, forest fires, wetland rice cultivation and waste products, while conventional tillage, manure deposited on pasture, synthetic fertiliser application and the decomposition of agriculture waste account for 70 per cent of nitrous oxide (N2O).
Moreover, about 70 per cent of the economic potential for the mitigation of climate change lies in developing countries, where the agricultural sector is often a significant source of GHG emissions but also a major source of employment (UNFCCC 2009). GHG mitigation activities in agriculture have co-benefits for, and offer synergies with, other policy objectives such as food and energy security, rural development and poverty alleviation goals.
The agricultural sector is also affected by other climaterelated forces such as the shift to biofuels and changes in plantation crops. Food price volatility may increase due to stronger linkages between agricultural and energy markets, although second- and third-generation biofuels do not pose the same risks.
Since 2010, the United Nation’s Food and Agriculture Organisation (FAO) has been promoting climate-smart agriculture as an approach to address the challenges of food security and climate change. It has three objectives: (1) sustainably increasing agricultural productivity to support equitable increases in farm incomes, food security and development; (2) adapting and building resilience within agricultural and food security systems to climate change at multiple levels; and (3) reducing greenhouse gas emissions from agriculture (including crops, livestock and fisheries). It seeks to offer a framework to deal with these three objectives at different scales (farm to landscape), levels (local to global) and time horizons (short and long), taking into account national and local specificities and priorities. However, implementation is a challenge due to lack of tools and experience and to the highly location-specific, knowledge-intensive nature of the possible options.
As many of the climate-smart options are sustainable agricultural practices that Helvetas has promoted for several decades, we are well placed to contribute to this agenda in a very practical manner. For example, Helvetas supports small rice farmers in improving their farming practices and productivity as well as offering them market access by establishing direct long-term partnership with important buyers, with whom we jointly invest in appropriate adaptation and mitigation measures.
How to adapt to climate change
A. Climate change project: An adaptation and/or mitigation project that is driven by considerations of climate change and concretely addresses risks and impacts of climate change. There are seven elements of such project;
B. Climate change sensitive project: A project whose results are directly affected by climate change;
C. Climate change relevant project: A project that contributes directly to the factors for climate change, positively or negatively, through its activities and actions.
Furthermore, adaptation, mitigation and disaster risk management are complementary strategies to reduce the impacts of climate change and eventually contribute to climate-resilient development pathways. This is a useful unifying framework that enables us to choose the appropriate entry points and actions based on local needs and contexts. Agriculture projects, in particular, provide avenues for interventions in all the four interlinked domains.
The lack of climate models that are downscaled to the subnational levels at which agricultural decisions are taken is a key challenge. Inter-model variations at lower levels are so high that they result in contradicting results on the feasibility of future farming options. In such a situation, a first step for adapting to future climate change is reducing the vulnerability and exposure to present climate variability through measures that offer development benefits now, and reduce vulnerability to climate variability in the longer term, irrespective of the exact long-term climate impacts (often called ‘low’ or ‘no regret’ measures). We promote such low/no regret measures that benefit farmers through more sustainable and improved production and lower costs.
In order to improve access to agro-meteorological advice Helvetas supports the collaboration between meteorological services, agriculture department and farmers so that advice reaches farmers in a timely and understandable manner.
Seven elements to build up a climate change project
2. Weather data is monitored/accessed from designated institutions, and project interventions are analysed with reference to this information.
3. Relationships and partnerships are established with meteorological departments, agro-meteorological centres and research institutions for adaptation, as well as with the private sector for mitigation actions.
4. Establishment of relationships with national environment ministries/climate change units for up-scaling and accessing upcoming climate funds.
5. Systematic monitoring and participatory assessment of project outcomes in relation to observed weather patterns for creation of new knowledge and experiences among community members.
6. Focus on long-term institutional sustainability, as adaptation (and mitigation) actions need to continue for the long term unlike classical time-bound project interventions.
7. Look for co-benefits between DRR, adaptation, mitigation and development, and avoid ‘silo thinking’.
Learn more about our work related to projects for climate change and agriculture in Bolivia, Ethiopia, India, Pakistan and Peru and download the full publication: