Climate change mitigation strategies seek to lower or prevent greenhouse gas emissions while strengthening resilience to climate impacts.
Effective mitigation techniques include transitioning to renewable energy sources, improving energy efficiency, adopting regenerative agricultural practices and restoring forests and other essential ecosystems. Such efforts require a societal shift and structural transformation for maximum effectiveness.
1. Renewable energy
Cutting fossil fuel use could save lives, money and the planet’s natural resources. By transitioning away from fossil-fueled power with renewables like solar or wind energy, we can reduce greenhouse gas emissions while simultaneously creating a more resilient economy.
Renewables produce much less global warming pollution during their entire life cycles — from extraction, manufacturing, installation and operation. Furthermore, they eliminate air-polluting emissions that contribute to respiratory and cardiac health problems.
Decentralized renewable energy production bolsters energy security and resilience by protecting against global supply disruptions and price spikes, while also adhering to equity, circular economy principles, and UN Sustainable Development Goals – creating the basis of an energy system which serves resilience, economic inclusion, and long-term sustainability.
2. Energy efficiency
Energy efficiency is an essential element in meeting our climate goals, reducing emissions while saving money. Achieve sustainability requires switching out household appliances for more energy-efficient versions, switching light bulbs out for LED ones, insulating houses properly and using solar panels – actions often supported by government policies like Germany’s KfW or the UK ECO scheme that offer low interest loans to achieve this.
Increased energy efficiency is one of the cheapest and most effective strategies to curb greenhouse gas emissions. Energy efficiency measures such as cutting energy waste (negawatts) downstream reduce power plant requirements upstream while also improving air quality, cutting costs for households and businesses, improving air quality and cutting costs in general. Energy efficiency impacts every aspect of society from buildings and transportation, industry production to electricity generation – even agriculture!
3. Regenerative agriculture
Regenerative farming can reduce pollution and climate change by building healthy soil. Perennial crops, grazing animals and cover cropping increase organic matter levels while decreasing carbon dioxide emission rates.
These practices not only increase water retention and decrease irrigation needs, lowering energy use and greenhouse gas emissions but they also promote biodiversity while reintegrating livestock back into agriculture.
But regenerative farming cannot solve climate change on its own; other solutions, like renewable energy, land-use reform and conservation finance must also be combined for maximum effect. There remain questions over whether it can actually build carbon into soil as its proponents assert; for instance Grayson Badgley asserts that accurate measurements of soil carbon sequestration require resource-intensive primary data collection that requires continual monitoring over time.
4. Sustainable land-use
Sustainable land-use practices such as location-efficient development, protecting and restoring natural and working lands and conserving soil health can enhance ecosystem services, climate resilience and local food security while simultaneously strengthening the land carbon sink – an integral component of climate mitigation strategies.
United States states are developing land-use policies and practices that advance climate goals. The America Is All In guide offers three core principles for state-level climate-aligned land use planning: reducing GHG emissions while strengthening resilience; protecting natural and working lands including their ecosystem services; and transforming systems for social equity with an eye towards those most at risk from climate impacts. Such strategies can help meet COP26 climate targets while simultaneously maintaining balance between sources and sinks of planet-warming greenhouse gases.
5. Adaptation
Adaptation involves decreasing our vulnerability to climate change impacts such as weather extremes, biodiversity loss, flood risks and food insecurity. Furthermore, adaptation is about taking advantage of opportunities presented by climate change – such as increasing crop yields in dry regions.
Evolutionary theory defines adaptation as the process by which natural selection enables organisms to adapt better to their environments, increasing biological fitness. Sometimes features originally developed for one purpose end up serving others – for instance insulating feathers of birds were once used to warn predators off.
The Paris Agreement recognizes that successful adaptation requires local, national, regional and international efforts with an integrated and holistic approach that takes into account vulnerable groups and ecosystems. This necessitates increasing capacity for adaptation as well as investing in adaptation measures within an adaptive policy cycle which is driven by its host country while being transparent, gender responsive, participatory and robust.