Mongolian authorities have suspended all grain exports as temperatures climb to their highest levels for 56 years

Electric cars and consumer technology are placing considerable demand on the world’s lithium market. Jules Gray asks if this could trigger the next commodity boom

The climate is changing and the first product to be seriously affected could be your morning cup of joe

Whether you smoke it or not, the history of cannabis in the US is important: it exposes the ignorance, prejudice and hypocrisy that go into lawmaking