On 4 April, the workshop „Preferences, attitudes and environmental impacts of the new middle classes“ takes place at DIE. The workshop aims to uncover effective combinations of policies to change towards sustainable lifestyles with a special focus on behavioural approaches. The research group “Sustainable Middle Classes in Middle Income Countries: Transformation of Carbon Consumption Patterns (SMMICC)” presents household survey results on consumption trends and their drivers in Ghana, Peru and the Philippines. Practical examples from the fields energy, transport and recycling complement the scientific perspective.