Consumers worried about the environment are cutting their spending on meat and bottled drinks and trying to reduce plastic waste, and this trend is set to accelerate as climate concerns mount, a global survey showed on Tuesday.

About a third of people surveyed in 24 countries in Europe, Latin America and Asia are alarmed about the environment, with half of those — or 16 percent of the global total — taking active steps to reduce their imprint.

"We're already seeing small reductions in spending on meat, bottled drinks and categories such as beauty wipes," data analytics firm Kantar said in a report on the survey.