Man harvests water lilies in chest-deep water.

How Much Does Climate Change Add to the Challenge of Feeding the Planet This Century?

By Climatelinks

Abstract/Description

The impacts of climate change on crop yields, as projected by a slew of impact assessments carried out since the 1980s, have brought the issue of future food insecurity to the fore. A meta-analysis of ~27,000 data points from studies published over the last four decades reveals that at country level, average impacts of climate change on crop yields up to the 2050s are generally small (but negative) for rice and wheat, and modest for maize, provided farmers adopt practices and technologies such as improved varieties, planting at optimal times, and improved water and fertilizer management. These technologies also have the potential to reduce differences across political, economic and climatic regions. Once these are adopted, climate change may not add significantly to the challenge of food production for the majority of countries except for some potential hotspots distributed around the world. Massive investment, policy, and institutional support will be needed, however, to facilitate adoption and scaling-out of such practices, and to address climatic variability.

Access the journal article here.

Citation

Aggarwal P, Vyas S, Thornton P, Campbell BM. 2019. How much does climate change add to the challenge of feeding the planet this century? Environmental Research Letters 14(4):043001.

Permanent link to cite or share this item: https://hdl.handle.net/10568/9982
DOI: https://doi.org/10.1088/1748-9326/aafa3e

Strategic Objective
Adaptation
Topics
Adaptation, Climate Risk Management, Food Security and Agriculture
Region
Global

Climatelinks

 

Climatelinks is a global knowledge portal for USAID staff, implementing partners, and the broader community working at the intersection of climate change and international development. The portal curates and archives technical guidance and knowledge related to USAID’s work to help countries mitigate and adapt to climate change. 

More on the Blog

This blog series features interviews with the winners of the 2020 Climatelinks Photo Contest. This photo, submitted on behalf of SERVIR West Africa, is available on the Climatelinks Photo Gallery.
This blog series features interviews with the winners of the 2020 Climatelinks Photo Contest. This photo, submitted on behalf of iDE Nepal, is available on the Climatelinks Photo Gallery.
The Feed the Future Innovation Lab for Markets, Risk and Resilience (MRR Innovation Lab) invites researchers at U.S. universities to submit proposals for research projects that support our mission to generate and transfer into action innovations that will bolster resilience, keeping rural individuals, households, communities and markets in positions of economic viability from which they can sustain and accelerate a path of inclusive agricultural growth.