6-2 Journal: The Role of Human Consumption in Sustainability IDS 150 Module Six Journal Guidelines and Rubric Overview In this module, we have learned that human consumption significantly impacts sust

The Role of Human Consumption in Sustainability

Najee Alim

Southern New Hampshire University

IDS-150 Perspect in Sustainability

Dr. Philip

February 15, 2026

The Role of Human Consumption in Sustainability

Assessment

Over a two-day period, I observed the consumption habits in my household to better understand how daily behaviors affect sustainability. I focused on four main resources: water, food, energy, and transportation.

On Day 1, approximately 200 liters of water were used. This included dishwasher use, one load of laundry, toilet flushing, and multiple showers. On Day 2, which was during the weekend, water use increased to about 250 liters due to additional cooking, cleaning, and longer showers. While most of the water was necessary, longer showers and a full laundry cycle for a smaller load were likely excessive.

Food consumption differed between the two days. On Day 1, four meals and snacks were prepared at home. On Day 2, there were three meals, but one included takeout delivery. Although fewer meals were consumed on the second day, the environmental impact may have been higher due to packaging waste and delivery transportation emissions.

Energy consumption was approximately 13 kWh on Day 1 and 15 kWh on Day 2. Energy was mainly used for LED lighting, laptops, the oven, and HVAC. I noticed that the HVAC system remained on even when no one was home, which contributed to unnecessary energy use. Additionally, several electronics remained plugged in, contributing to passive or “vampire” energy drain.

Transportation also varied. On Day 1, about 25 kilometers were driven for commuting and errands. On Day 2, only 6 kilometers were driven. Personal vehicle use was the main method of transportation.

After evaluating these habits, I discovered that my household consumes slightly more resources than I expected, especially during weekends. There was a noticeable trend where energy and water use increased when more time was spent at home. Another trend was convenience-based consumption. While takeout seemed easier, it resulted in additional packaging waste and delivery emissions, increasing environmental impact even though less food was consumed.

These consumption habits directly relate to sustainable development. When resources are used inefficiently, it contributes to what is often called a linear economy: take, make, and waste. Sustainable development requires a shift toward more responsible use of resources and a circular approach where waste is minimized. Overconsumption of water and energy increases carbon emissions and strains shared natural resources, which affects long-term environmental stability.

There are several behavioral changes that could reduce consumption. Immediate changes include unplugging electronics when not in use, shortening showers, adjusting the thermostat when leaving the house, and combining errands to reduce driving. These changes have the advantage of being low-cost and easy to implement. The main challenge is maintaining consistent habits and awareness.

Long-term changes could include installing low-flow plumbing fixtures, using a smart thermostat, reducing meat consumption, or eventually transitioning to an electric vehicle. These changes could significantly reduce water use, energy consumption, and carbon emissions over time. However, they may require upfront financial investment and lifestyle adjustments.

The benefits of reducing meat consumption include lower land and water use, while the drawback is adapting to dietary changes. Smart thermostats reduce energy use but require an initial purchase cost. Public transportation reduces carbon emissions but may be less convenient depending on scheduling and location.

Overall, this reflection made me more aware of how everyday decisions contribute to environmental impact. Sustainability begins with intentional consumption. Even small behavioral changes can collectively support long-term sustainable development.