An estimated 36,000 job losses, mainly in agriculture and tourism. Agriculture. Droughts caused by climate change will particularly affect rainfed cereal farming interests, which would decrease from a current average land area of 1.5 million hectares to about 1 million hectares in 2030, i.e. a reduction of approximately 30 per cent. Agricultural GDP following the reduction in land area, given yields identical to the reference situation, would fall by 5 to 10 per cent by 2030. In the event of successive extreme droughts, the land area used for cereal crops and arboriculture (mainly regions in the centre and the south) will decrease by 200,000 and 800,000 hectares respectively.