By Walimuni Chamindri Sewanka Mendis Abeysekara, Mahinda Siriwardana, Samuel Meng – Published by ScienceDirect – March 2023
Scientific evidence suggests that agriculture will be adversely affected
by climate change globally in the near future, with the countries and
small islands of South Asia projected to be amongst the most vulnerable.
This study uses the ORANI-G-SL, a single-country, static computable general equilibrium model
to investigate the economic impacts of climate change-induced
agricultural productivity changes on Sri Lanka, as a South Asian case
study. In comparison with a baseline scenario, the results show
reductions in the output of most agricultural crops will cause increased
consumer prices for these agricultural commodities, with a
consequential decline in overall household consumption within next few
decades. The projected decline in crop production and increases in food
prices will enhance the potential for food insecurity. Thus, climate
change will negatively impact the overall GDP and most of the macro and
microeconomic variables of the Sri Lankan economy. These results
highlight the need for future scientific research on climate change
adaptation strategies and the importance of developing policy responses
to counter adverse effects on agriculture and food security.