By Sneha Majhi

Introduction

Earth Overshoot Day is the day every year when the consumption of human beings exceeds the regenerative potential of earth towards replacing the resources consumed in that year. This phenomenon suggests a continued level of consumption by human beings, which is beyond that of the recovery levels of ecosystems (WWF, 2021).

Earth overshoot day is a scathing reminder that the consumption patterns of humankind are simply unsustainable, representing the date every year by which human demand for ecological resources exceeds the amount that Earth can regenerate in the same year. This has progressively moved to earlier dates within the calendar year over the decades, which seems to suggest a trend of increasing consumption at a level out of kilter with Earth’s capacity to replenish its own resources (WWF, 2021). So theoretically, in 2021, Earth overshoot day would fall on July 29th, meaning that we are consuming as if we had 1.7 Earths (UNEP, 2023). These forward overshoot dates translate to terrible ecological implications in the form of deforestation, overfishing, soil erosion, and depleted freshwater sources.

The consequence of such overconsumption is further ecosystem degradation and loss of biodiversity as well as unstable climate. As the Sixth Extinction states, “We are living on borrowed time,” making sure that the urgency of these interlinked crises must be dealt with today (Ripple et al., 2022).

What is more, it is not an easy numerical indicator but rather a symbol of systemic failure in the use and allocation of the resources of societies. The ecological footprint measures the environmental impact of the practices of individuals or groups and plays a significant role in the implementation context of Earth overshoot day implications. Brown and Kasser (2022) remind one that it is also this very increasing gap between our ecological footprint, as produced by our societies, and available biocapacity that is a looming crisis, one that threatens human well-being itself.

The Sequelae of Over-Consumption

The effects of overconsumption can be named under a few key spheres:

Environmental Degradation: Overexploitation led to deforestation, soil erosions, and water deficiency which generally weakened the ecological system and reduced yield of agriculture (FAO, 2023).

 Loss of Biodiversity: Habitat loss and climate change eventually result in species extinction, thus weakening ecosystems and diminishing critical services like pollination and filtration of water (Bennett et al., 2020).

Climate Change: The over-consumption of resources leads to an excessive release of greenhouse gases, thus enhancing global warming and bringing more adverse weather conditions and ecological disturbance. This will definitely result in unbridled erosion of ecosystems as well as natural resources destruction. (IPCC, 2021).

Health Conditions of Mankind: Environmental degradation results in food insecurity, water pollution, and increased epidemics and affects the health and lifestyle of human beings. (WHO, 2022).

Economic Instability: Continued waste of natural resources automatically escalates the scarcity of the resources involved, making its prices go up and causing sectors in the agriculture and fishery industries to be threatened. (OECD, 2023).

The repercussions of such overconsumption extend beyond environmental degradation; they also intersect with economic instability and social inequity. Low ecological footprint countries are characterized by a lack of resources while the high footprint countries have unsustainable luxury, saddening the world in terms of inequality (Harrison et al., 2022). We should critically notice the complexity of interconnection between our consumerist behaviour and its impact on ecosystems worldwide as well as on local communities before the next decisive hour for our environmental crisis (IPBES, 2022).

Mitigation and Solutions

To help curb the crises of Earth Overshoot Day and loss of biodiversity, systemic change is necessary. In that case, a few strategies are included:
Renewable Energy: Fossil fuel dependence should be replaced with renewable energy to reduce carbon emissions and address climate change (UNEP, 2023).
Sustainable Agriculture: Sustainable agriculture can restore ecosystems while providing assurance to the food supply and reducing negative impacts on the environment (FAO,2023). It should embrace circular economies. Circular economies are based on this model for the reuse and recycling of things as much as possible instead of extracting new ones thus promoting a more sustainable resource management blueprint (Ellen MacArthur Foundation, 2020).
Ecosystem restoration: This includes reforestation and habitat conservation, such as targets – 30×30 biodiversity protection target for enhancing carbon sinks and conserving threatened species (CBD, 2021).

Awareness and education contribute significantly to pathways of sustainability. Efforts through public engagement programmes are likely to affect consumer behaviours towards a more sustainable mode of behaviour – including reduced meat consumption or buying ethical brands (Klein, 2020). Second, policy change from the government will provide the positive push with incentives like carbon taxes and subsidies on sustainable applications (OECD, 2022).

Finally, the world needs cooperation to solve these crises. Conservation agreements, like the Post-2020 Global Biodiversity Framework, challenge all nations to cooperate in biodiversity conservation and ecological restoration (CBD, 2023). Coordinated endeavours can bring in their strength to improve resources and become a force in unison to counter the increasing threats of Climate Change and environmental degradation.

Conclusion

Biodiversity loss and Earth Overshoot Day are two sides of the same crisis caused by the human overexploitation of finite resources. It is important to change people’s minds, policies, and personal behaviours if a new trajectory needs to be traced. Naomi Klein in her book This Changes Everything believes that: “We must fundamentally rethink our relationship with the planet” (Klein, 2020). We can regain the balance of the Earth by promoting conservation, reduction in consumption, and more sustainable lifestyles to prolong it and delay the day of Earth Overshoot Day, conserving biodiversity that is a prerequisite for life.

A holistic approach that considers the needs of people and the planet will help produce a sustainable future that not only is for humanity but also for the Earth. The timing to take the action now means the more inaction that there is, the more it will bear in its consequences years forward.

This loss of biodiversity and the advancement of Earth Overshoot Day represent two faces of the same crisis created through human overexploitation of finite resources. Change needs to come from a collective effort toward changing mindsets, policies, and personal behaviour. Naomi Klein stresses in her book, “This Changes Everything,” that we need to fundamentally rethink our relationship with the planet. We shall bring back our ecosystems into balance if we take up conservation and reduce consumption to embrace sustainable ways of living-thus making a living future on Earth and for each person.

Therefore, though complex and challenging, the path ahead is crystal clear: embracing sustainability not only as prudent but also as necessary for the survival of our planet and future generations.

References

Bennett, G., et al. (2021). Biodiversity and the sustainable development goals. Nature Sustainability, 4(1), 1-12. https://doi.org/10.1038/s41893-020-00615-0

Ellen MacArthur Foundation. (2023). Circular economy: A powerful force for climate mitigation. https://www.ellenmacarthurfoundation.org

European Environment Agency. (2022). Biodiversity in Europe: An overview. https://www.eea.europa.eu/publications/biodiversity-in-europe

FAO. (2022). The state of food security and nutrition in the world 2022. Food and Agriculture Organization. https://doi.org/10.4060/cc0861en

FAO. (2023). Advances in agroecology for climate resilience. Food and Agriculture Organization. https://www.fao.org/agroecology/en/

Harrison, P. A., et al. 2022. Climate change and biodiversity: Impacts and adaptation. Climate Policy 22.4: 491-503. https://doi.org/10.1080/14693062.2021.2004234

IPBES. 2022. Global assessment report on biodiversity and ecosystem services. Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services. https://ipbes.net/global-assessment

IPCC. 2023. Climate Change 2023: Impacts, Adaptation, and Vulnerability. Intergovernmental Panel on Climate Change. https://www.ipcc.ch/report/ar6/wg2/

Klein, N. 2020. This changes everything: Capitalism vs. the climate. Simon & Schuster.

NASA. 2023. Global climate change: Vital signs of the planet. National Aeronautics and Space Administration. https://climate.nasa.gov/.

OECD. 2022. Economic outlook for Southeast Asia, China and India 2022. Organisation for Economic Co-operation and Development. https://doi.org/10.1787/e90c1599-en

Pörtner, H. O., et al. 2021. Climate change 2021: Impacts, adaptation, and vulnerability. In Climate Change 2021: Impacts, Adaptation, and Vulnerability. Cambridge University Press. https://www.ipcc.ch/report/ar6/wg2/

Rockström, J., et al. (2020). Planetary boundaries: Exploring the safe operating space for humanity. Ecology and Society, 25(2), 1-14. https://doi.org/10.5751/ES-11595-250201

Single Earth. (2021). Understanding Earth Overshoot Day. https://www.single.earth/blog/overshoot-day

UNEP. (2022). The emissions gap report 2022. United Nations Environment Programme. https://www.unep.org/resources/emissions-gap-report-2022

UNFCCC. (2021). Report on the 26th UN climate change conference of the parties. https://unfccc.int/cop26

United Nations. (2021). The 2030 agenda for sustainable development. https://sdgs.un.org/2030agenda

ESGN. (2022, July 29). Earliest Day Ever for Earth Overshoot Day on July 29. https://esgn.asia/earliest-day-ever-for-earth-overshoot-day-on-july-29/