That was the essay question I chose to answer in the final paper of the 2011 Master of Wine theory examination. I simply wrote:

A spell of good weather and the reopening of hotels, cafes and restaurants in many European countries has significantly boosted the demand for limes.

The wait times for avocado trees could soon get a lot shorter thanks to a world-first Australian innovation that can use a single millimeter of tree cutting from one tree to make 500 new ones.

Since man began producing grain many centuries ago, there has been a need to trade it — with a neighbor, a neighboring village or a nearby region. As technology improved, infrastructure built, communication refined and crops burgeoned beyond demand, nations started looking beyond their borders for trade partners.

Frosty conditions in orchards in many countries this year have led to a slower start to many stone fruit productions across the globe, with Spain and Italy being particularly hard hit.

Fertilizers play two essential roles in the fight against climate change.