Thank you, honourable members.
I hope today to share my experience as a former senior fellow for Project Drawdown and researcher on agricultural climate change mitigation. My knowledge relates to science and practices rather than policy. That part I will leave to you.
Climate change is kind of like an overflowing kitchen sink. Emissions are the water flowing from the faucet, which is now pouring onto the floor. The first thing to do is to turn off the faucet. That's reducing emissions, turning off the faucet. The next thing is to mop up the wet floor. This is carbon sequestration. Both are necessary, and neither is enough alone.
In the area of agriculture, we have several approaches to mitigation.
The first is to demand reduction, for example, reducing food waste and shifting diets to foods with low emissions and low land demand, although food can have positive or negative effects depending on how it is produced.
Next is reducing emissions from agricultural production itself.
Third is to remove excess carbon dioxide from the atmosphere and store it in soils and biomass, a process called carbon sequestration. Increasing productivity on the farmland we have can help to reduce deforestation pressure elsewhere, a process called sustainable intensification.
Finally, the supply chain is a significant source of emissions, including transport, processing, retail and more.
Each approach is important, and together they can have a powerful impact.
According to FAO, Canada's top five sources of agricultural emissions are land conversion, farming on peat soils, on-farm energy use, enteric fermentation from the digestion of cattle and other ruminant livestock, and synthetic fertilizers.
Canada has a powerful tool kit of mitigation practices to draw on. I love seeing the agricultural climate solutions grants program that targets cover crops, nutrient management, shelterbelts and rotational grazing. These are all excellent priorities.
A number of additional tools are available to address your key emission sources like limiting land conversion, re-wetting peatland soils, on-farm energy conservation and using forages with high tannin levels to reduce methane. Returning sovereignty of forest land to indigenous people is also a powerful tool for protecting forest carbon.
When it comes to carbon sequestration, it's important to note that some practices have a much higher per acre impact than others. They're not all equal. Generally speaking, the more trees, the more carbon. This is why agroforestry practices that integrate trees with crops and/or livestock are especially powerful.
Carbon sequestration has other limits as well. It does slow down dramatically after several decades, and the carbon that is held can be re-released by climate disasters or a return to the previous farming practices.
To come back to the notion of the overflowing sink, the bucket for the mop is only so large, and it can be knocked over. Carbon sequestration is essential, but isn't the only approach we should take.
While many emission reduction practices are new and were created just for mitigation, this is not true for carbon sequestration. These practices were developed because they're good for the farm and/or the surrounding environment. They offer many co-benefits like climate change adaptation, which is critical because, while no farm on its own can mitigate all of climate change, every farm must be resilient to the new conditions in which they're farming.
Canadian farmers are facing increased rainfall intensity, which exacerbates erosion. Many of these carbon sequestration practices reduce erosion, and all of them improve soil organic matter, which greatly enhances soil water-holding capacity for drought resilience, among other benefits.
The proposed private member's bill, Bill C-203, an act respecting soil conservation and soil health, would create a national strategy to greatly accelerate the adoption of practices that sequester soil carbon and assist farmers to adapt to our changing climate.
Thank you once again, and I welcome the opportunity to answer any questions.