Listen to an expert on the global food system and learn some vocabulary.
Addicted to war
First and zero conditional
Present perfect continuous
Ice and the origins of life on Earth
Quantifiers
Modals of deduction and speculation
Ecotourism: good or bad?
Phrasals
Can climate change cause more disease?
Food shortages
Recording should be less than 60 seconds
00:00 / 00:59
Restart
