This process taps into the natural ability of plants and other plants to consume greenhouse gases as they grow. In turn, specially designed or retrofitted facilities can use these plants to produce electricity or fuel, and capture and store the emissions generated. However, today only a few establishments are doing this an increasing number is in the process of working.
But the United Nations report warns that growing enough crops to remove significant amounts of carbon dioxide would require vast amounts of land. That might contradict efforts to produce food for a growing population and create additional strains of bacteria for animal and plant species. One study note that enough land conversion to avoid 2 ˚C warming could change the range of a large portion of European bird species by more than 4 C warming due to climate change.
Many groups, including The Green Tree Initiative, has also highlighted the potential of tree planting as a measure to combat climate change. Different regions and organizations allow landowners and businesses buy and sell carbon offset as part of such efforts.
The report notes that replanting trees in previously forested areas generates many benefits. However, planting trees where they do not grow naturally can have adverse effects on the environment, it warned.
Planting trees in natural pastures can reduce water flow in streams and increase fire intensity. It may even contribute to global warming, as grass reflects more heat than forests. Likewise, draining peatland for planting purposes can release large amounts of greenhouse gases from these naturally rich carbon sinks.
The authors note that ensuring that these approaches reliably remove greenhouse gases, while minimizing downsides, will require careful consideration of the local context and conditions. direction. The conclusions also emphasize the importance of pursuing a variety of approaches to carbon removal, including emerging technological approaches such as live air shooting and the use types of minerals.
It is becoming increasingly clear that the world will need to eliminate large amounts of greenhouse gases in the coming decades — and that we don’t know yet cost-effectively, efficiently, or reliably, anywhere near the scale required.