Dorothea Lange's powerful photographs, such as 'Migrant Mother', captured the struggles and resilience of migrant workers during the Great Depression, raising awareness about their plight and contributing to policy changes.

Kevin Carter's photograph, 'The Starving Child and the Vulture', captured the haunting image of a starving child being watched by a vulture, highlighting the severity of the famine in Sudan and sparking discussions about the role of photojournalists in documenting human suffering.

Sebastião Salgado established Instituto Terra in 2004 with the aim of restoring degraded forests and promoting sustainable development in the Amazon rainforest, while also supporting indigenous communities and their traditional knowledge.

Edward Burtynsky, Jennifer Baichwal, and Nicholas de Pencier collaborated on the 'Manufactured Landscapes' project, which explores the visual consequences of industrialization and resource extraction on the natural world, raising awareness about the environmental impact of human activities.

Sonali Dasgupta's photography project, 'The Lives of Sex Workers in Kolkata', brings attention to the lives and experiences of sex workers in Kolkata, India, highlighting their struggles and challenging societal stigmas associated with their profession.

Ami Vitale established 'Women Photograph' to amplify the voices and perspectives of women and non-binary photographers, particularly those from marginalized communities, by providing them with opportunities, resources, and mentorship.

Paul Nicklen's photography project, 'Polar Obsession', documents the impact of climate change on Arctic communities and wildlife, highlighting the urgent need for action to address global warming and protect the fragile Arctic ecosystem.

Lynsey Addario co-founded 'Women Photojournalists of the World' to provide a platform for women photojournalists to share their work, connect with each other, and advocate for gender equality in the field of photojournalism.

Yann Arthus-Bertrand's aerial photographs of deforestation in the Amazon rainforest, particularly his book 'Earth from Above', brought global attention to the devastating impact of human activities on the environment and the urgent need for conservation efforts.

The National Geographic Society's 'The Photo Ark' project aims to document and raise awareness about the world's most endangered species, highlighting the importance of biodiversity conservation and the urgent need to protect these species from extinction.

Jimmy Nelson's photography project, 'Before They Pass Away', documents the lives and cultural traditions of indigenous communities around the world, highlighting the importance of preserving their heritage and the challenges they face in a rapidly changing world.

Marcus Bleasdale founded 'Diversify Photo' to provide mentorship, training, and opportunities to emerging photographers from underrepresented communities, aiming to promote diversity and inclusion in the field of photojournalism.

Chris Jordan's photography project, 'Midway: Message from the Gyre', documents the devastating impact of pollution and plastic waste on marine ecosystems, particularly the accumulation of plastic debris in the North Pacific Gyre, highlighting the urgent need for action to protect our oceans.

David Guttenfelder co-founded 'The Everyday Projects' to support and promote ethical and responsible storytelling in visual journalism, providing resources, training, and mentorship to photographers and filmmakers.

Lynsey Addario's photography project, 'Of Love and War', documents the lives of refugees and displaced people around the world, highlighting their struggles, resilience, and the urgent need for humanitarian aid and support.