Experts at a seminar yesterday said the agricultural production would decrease significantly in Saarc region in the coming years due to climate change. Developing new varieties of crops tolerant to heat, drought and salinity is a must, otherwise the region would fall into the grip of serious food crisis, they added. The seminar titled 'Climate change and its impacts on agricultural production system in Saarc region' was organised by Saarc Agriculture Centre at the conference hall of Bangladesh Agriculture Research Council (Barc) in the city.