A dramatic decline in the number of pollinators such as bees and butterflies could lead to shortages in supplies of raw materials for many companies, a new study has found.

Some of the world’s biggest retailers and food companies including Kellogg Co, Walmart Inc, and Nestle backed a new initiative on Wednesday to improve global supply chains amid rising consumer demand for slave-free goods and services.

Consumers, and millennials specifically, have clearly set a precedent: they want sustainability to be top-of-mind for brands when it comes to achieving their business goals, according to social media software provider Digimind Inc.

Global wine output fell to its lowest level in 60 years in 2017 due to poor weather conditions in the European Union that slashed production in the bloc, international wine organization OIV said.