The document discusses several examples of environmental injustice throughout history and in modern times. Along the US-Mexico border, multinational corporations dump toxic waste into the Rio Grande, poisoning the drinking water and causing high rates of birth defects for low-income residents who lack political power. The Flint water crisis exposed over 100,000 residents to lead due to infrastructure mismanagement, disproportionately affecting the health of poorer communities. After Hurricane Katrina, low-income minority neighborhoods in New Orleans were hit hardest due to a lack of maintenance of levees and infrastructure in their historically redlined districts, which received less funding and prevented social and political gains.