Critical geography encompasses a range of concepts and theories that challenge traditional notions of space, place, and power. Spatial justice, political ecology, and decolonization are all central themes within critical geography.

Political ecology is a branch of critical geography that examines the political, economic, and social factors that shape the relationship between humans and the environment.

Decolonization in critical geography aims to challenge the ongoing effects of colonialism and imperialism, promote social justice and equality, and protect the rights of indigenous peoples.

The environmental justice movement is a social movement that seeks to address the disproportionate environmental burdens faced by marginalized communities.

Social movements play a crucial role in critical geography by challenging dominant power structures, promoting social change, and raising awareness of social and environmental issues.

David Harvey is a critical geographer who has extensively studied the concept of spatial justice. His work has influenced the field of critical geography and has contributed to the understanding of the relationship between space, power, and social justice.

Critical geographers critique traditional geography for its focus on objective and value-free research, its neglect of social and political issues, and its emphasis on the natural environment over the human environment.

Henri Lefebvre is a critical geographer who is known for his work on the concept of the 'right to the city'. He argued that the city should be a place where all citizens have the right to access and use urban resources and services.

The concept of 'scale' in critical geography encompasses the spatial extent of a phenomenon, the level of analysis at which it is studied, and the relationship between different spatial scales.

David Harvey is a critical geographer who is known for his work on the concept of 'accumulation by dispossession'. He argued that capitalism relies on the dispossession of people from their land, resources, and livelihoods in order to accumulate wealth.

The main goal of critical geography is to challenge dominant power structures, promote social justice and equality, and raise awareness of social and environmental issues.

Doreen Massey is a critical geographer who is known for her work on the concept of 'gendered space'. She argued that space is not neutral, but rather is shaped by social relations, including gender relations.

The concept of 'social reproduction' in critical geography encompasses the process by which society reproduces itself, the process by which the working class reproduces itself, and the process by which capital reproduces itself.

Neil Brenner is a critical geographer who is known for his work on the concept of 'planetary urbanization'. He argued that urbanization is not just a local or regional process, but rather a global process that is transforming the entire planet.

The concept of 'ecological imperialism' in critical geography encompasses the process by which developed countries exploit the natural resources of developing countries, impose their environmental standards on developing countries, and use their military power to control the natural resources of developing countries.