What is the fine-grained topic of the following text: The exhibition includes over 30 images shot by Steve McCurry in Africa, Latin America and Asia as part of the Lavazza sustainability project ¡Tierra!, which has seen the company and its Foundation involved in a series of activities which have been helping to support and develop the coffee-growing communities there since 2002. Only return the topic.
Steve McCurry's photographic exhibition for Lavazza sustainability project ¡Tierra!