Over three-quarters of the world’s crops benefit from insect pollination. Bumblebees are far more efficient pollinators than honey bees. Extreme heat and human activity are making their survival harder. We are losing them at an alarming rate.
theconversation.com/bumblebees-in-crisis-insects-inner-lives-reveal-what-the-world-would-lose-if-they-disappear-131519