Climate change mitigation refers to measures taken to decrease sources of greenhouse gases while increasing carbon sinks, such as switching to renewable energy, revamping our agriculture systems, protecting forests, or switching off lights in unlit rooms.
Implementing these measures is critical to creating a more sustainable future, and everyone can play their part by advocating for climate-smart policies and practices in their community.
Energy efficiency
Energy efficiency is one of the main strategies to cut energy demand and emissions, making it a cornerstone of Europe’s Energy Strategy, and one of the main measures included in IEA’s Net Zero Emissions by 2050 Scenario.
Energy efficient buildings, transportation and industry can help reduce greenhouse gas emissions, lower energy bills and enhance economic competitiveness. What’s even better is that these measures are often cost-effective and can be implemented quickly.
Utilizing less energy has other significant advantages, including improved air quality and reduced strain on power grids and infrastructure. By publicly committing to increasing their energy efficiency through initiatives like EP100, businesses can show climate leadership while sending a clear signal to governments and other businesses alike. By doing this, energy efficiency may reach its full potential faster, leading them down the path toward net zero emissions faster.
Adaptation to climate change
Adaptation is necessary to limit the risks posed by climate change and to safeguard communities, buildings, businesses and ecosystems. It can take various forms such as building flood defences or shifting development away from inundated coastlines; designing road surfaces to withstand higher temperatures; or changing farming practices and crops in response to longer growing seasons, higher heat extremes or pest migration.
Ideal adaptation plans should take the future into consideration, taking into account that some options will become less effective or unfeasible as climate change occurs. The goal should be to build resilience against climate change while simultaneously reducing emissions to keep temperature fluctuations below safe thresholds.
Climate adaptation needs are on the rise rapidly as climate disasters such as flooding, wildfires and cyclones increase worldwide. Yet private finance for climate-related adaptation projects remains limited while developing countries struggle to access enough funds from domestic sources alone to adapt effectively; perhaps now is also time for developed nations to assist.
Reforestation
Renewable energy, sustainable farming practices and carbon emissions reduction may be top of mind as ways to address climate change; but reforestation should also be seen as a critical climate change mitigation strategy. By planting trees on previously treeless land or revitalizing existing forests through reforestation efforts, reforestation can reduce global warming temperatures while improving human health and ecosystems simultaneously.
According to a recent study conducted by ETH Zurich, there are 900 million hectares of unused land globally that could become forests – helping combat climate change by acting as carbon sinks and mitigating its effects.
Before this can take place, however, several key questions must be answered first. These include how increased tree coverage will influence Earth’s surface albedo and evapotranspiration rates as well as when and how reforestation will make an impactful statement against global warming. Answers to such queries will determine whether reforestation is indeed the optimal way to combat climate change mitigation.
Sustainable agriculture
Sustainable farming practices decrease the use of toxic chemical inputs that pollute groundwater and soil, foster biodiversity, and help farmers increase yields without sacrificing long-term farm profitability. Sustainable practices may even help combat climate change by decreasing fossil fuel usage and mitigating GHG emissions through better water management practices.
UC researchers specialize in sustainable agriculture to promote environmentally-friendly methods that lower greenhouse gas (GHG) emissions while still supporting farm viability and food security. Such methods include agroforestry and no-till farming which sequester atmospheric carbon dioxide in soil, as well as improved water conservation strategies such as using rainwater for irrigation, low volume sprinkler systems and minimizing freshwater loss due to evaporation or runoff.
Sociopolitical barriers such as distributional effects and affordability often prevent farmers from fully realizing their mitigation potentials in agriculture. These considerations include local context and adoption capacity issues; social sensitivities related to costs, choice, food security; political considerations such as electoral weight or lobbying efforts; as well as international factors like trade or big agriculture.