Attention to the status of grizzly bears started in 1995, where reproach to their behaviour, habits, and lifestyle was studied. Bear habitat lost due to mining infrastructure is low but one of the main causes of grizzly death is the attraction of food waste from mines. Practices in reducing food waste and scrapes around the mine can help with the decline in their population. One of the biggest threats to lake health occurs once mining operations are over. Many of the current mines in the NWT are located near lakes, which impacts its aquatic life, chemistry, and lake structure. The input of calcium (Ca) from diamond mining activities is an element that is found as a by-product of mining, which changes the chemistry of the lake, specifically its pH. Ekati Ming experiences a change in water chemistry where calcium concentrations increased from 1 mg/L to 30 mg/L. The increase in calcium results in an increase of pH from 7 to 8. Change in pH can restrict the plants and animals which are able to live in that environment. Post-mining activities cause the runoff of many toxic chemicals in near streams and rivers. Harsh chemicals found in aquatic lake environments can impact aquatic producers (phytoplankton) and primary consumers (zooplankton). The health of species found at the bottom of the food chain determine the health and population of species found at the top of the food chain. The process of the decline of larger species from producers is called bottom-up approach, where species at the bottom of the food chain determine the overall health of the lake. This cascading defect was seen at Ekati Diamond Mine, where lakes near the mine had a decrease in phytoplankton (producers) and zooplankton (primary consumers) where is caused the decrease of larger fish.