The Increase of methane in the atmosphere: consequences and solutions within reach

In recent years, atmospheric methane emissions have seen a worrying increase, attracting the attention of scientists and environmentalists worldwide. Methane is a powerful greenhouse gas that contributes significantly to global warming. In addition to coming from natural sources such as swamps and volcanoes, it is mainly released through human activities such as intensive agriculture and livestock farming, the energy industry, and waste. Tackling this phenomenon has become a crucial priority to preserve the well-being of life on the planet.



Studies show an increase in emissions

According to the most recent research, global methane emissions have grown dramatically over the last decade. Data from the Global Methane Budget, published in 2022, reveals that emissions from agriculture, such as rice production, and livestock farming are among the main causes of this increase. Methane leaks from natural gas and oil fields are also on the rise, further increasing the concentration of this gas in the atmosphere. Scientists warn that, without immediate action, methane will continue to worsen climate change. A study published in the scientific journal Earth System Science Data has confirmed that, over the last twenty years, total annual methane emissions have increased by 20%.

What damage is caused by methane emissions

Methane is about 25 times more powerful than carbon dioxide at trapping heat in the atmosphere. This makes it one of the main drivers of global warming. The rise in average global temperatures has multiple consequences: melting glaciers, rising sea levels, and extreme weather events such as heatwaves, droughts, and floods, and, more generally, disrupts the normal functioning of ecosystems. Furthermore, high concentrations of methane can contribute to the formation of tropospheric ozone, a pollutant harmful to human health and plants. This type of ozone reduces plants' ability to photosynthesize and slows agricultural growth, worsening the global food crisis.

What can be done, in our own small way, to remedy this

Although reducing methane emissions requires major changes at a global level, there are actions that each of us can take in our daily lives, starting in our own garden. Here are some ideas to actively help combat methane emissions:

1. Plant useful trees. Some trees, such as poplars and alders, have roots that host bacteria and fungi capable of breaking down methane in the soil. The bark of some tree species can also host microorganisms capable of absorbing methane from the atmosphere, reducing its concentration. We recently discussed this in this article. Choosing to plant these species can make a small but significant difference.
2. Manage organic waste properly. Composting organic waste correctly reduces methane formation. Proper aeration and balancing the materials in the compost prevent anaerobic conditions, which are responsible for emissions of this gas.
3. Promote biodiversity in the garden. Creating a garden with a variety of native plants not only promotes local biodiversity but also helps keep the ecosystem in balance, enabling it to absorb and process greenhouse gases more efficiently.
4. Grow plants that help combat climate change. In addition to trees, perennial herbs and low-maintenance lawns can also help reduce greenhouse gas emissions, especially if grown according to dry gardening principles, as they do not require fertilizers, reducing the use of chemicals that contribute to methane and other harmful gas emissions.

Although methane represents one of the greatest environmental challenges of our time, taking action in our own small way is a fundamental step toward reversing the trend. Caring for your garden with suitable species and adopting sustainable practices can help not only improve the local environment but also combat climate change on a global scale.