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Gardening to Beat Climate Change

Gardening to Beat Climate Change

Earth Day has come and gone, but I haven’t stopped worrying about the greatest challenge our ecosystem has faced since the beginning of human history: global climate change.

This year is already setting records: February of 2016 was the hottest February on record globally, and March was the hottest March.

It’s easy to feel helpless when confronted with a problem of such a huge scope. But recently, the folks at NOFA (the Northeast Organic Farming Association) reminded me that as a gardener, I can play a role in addressing global climate change. In fact, according to NOFA’s calculations, we stewards of the soil could be the solution

From “Soil Carbon Restoration: Can Biology Do the Job?”

NOFA has been promoting to its 5,000 members – farmers, gardeners, and land managers — a style of farming and gardening called “regenerative agriculture.” This has many aspects, but the essential aim is to restore the health of the soil. The foundation of this is to rebuild the soil’s organic content, which means boosting its carbon content. This carbon derives from carbon dioxide gas, extracted from our atmosphere by photosynthesizing plants. Because carbon dioxide is the principal greenhouse gas and the driver of global climate change, reducing its level in the atmosphere is generally viewed as the key to controlling global warming.

How much impact could changing our style of growing have? A lot, according to a white paper published by NOFA. In fact, much of the increase in carbon dioxide levels since the beginning of the Industrial Revolution can be traced to trends in farming; land clearing and increased tillage and cultivation have released 136 gigatons of carbon into the atmosphere, considerably more than the amount of carbon that experts say must now be extracted from the atmosphere if we are to escape the worst effects of global warming.

If all farmers, ranchers and growers worldwide were to practice regenerative agriculture, then, the NOFA white paper estimates, the necessary reduction in carbon dioxide could be accomplished in 5 years.

Will this happen? No, at least not on that time scale. But it gives growers like you and me something to aim at, and an incentive to become leaders and exemplars. Many of the necessary changes in our gardening style, such as the rejection of pesticides and synthetic fertilizers, you may already have made. Some, such as keeping the soil covered with plant growth at all seasons and eliminating (as much as possible) tillage, are likely to require considerable adjustments, especially from older gardeners of my vintage.

I urge you to read NOFA’s white paper, “Soil Carbon Restoration: Can Biology Do the Job?” It can help us all to garden up to our fullest potential.

Posted by

Thomas Christopher
on May 2, 2016 at 12:46 pm, in the category Gardening on the Planet, Science Says.

4 Comments

    • Thomas Christopher
    • 4th December 2016

    Your 1/3 of an acre won’t change anything by itself, but if we put our efforts together, we can set an example and perhaps change the style of cultivation across a far broader area. And I agree with you absolutely, that doing something positive is better than despair.

    • Tara Sayers Dillard
    • 8th December 2016

    Wendell Berry. Hope you already know the name. He’s decades ahead of you. Lot’s of good stuff for any serious gardener/farmer.

    • Thomas Christopher
    • 16th December 2016

    Thanks for the reminder about Wendell Berry. I once had the opportunity to speak with him and have never forgotten his combination of wisdom and unassuming courtesy.
    You are right, of course, about the pollinators, native bees, et al. — we need to think holistically.

    • Marcia
    • 16th December 2016

    One can’t help but be pessimistic.
    1. Teens average 9 hours a day with some sort of media.
    2. The rise of ‘selfie’ culture has meant teens also spend 15 minutes a day taking pictures of themselves to send to their friends or post online
    3. A German City embeds traffic lights in sidewalks so smartphone-users don’t have to look up
    4. Milwaukee:
    Property owners are no longer enamored of planting trees,” Wilson says. Instead, urban dwellers are investing in pergolas, awnings, umbrellas and other strategies to create shade. Changing lifestyles and successful marketing by landscape and home-improvement industries are making people forget about trees, he explains. Fire pits and patios made of pavers or concrete are leaving less space for substantial trees in urban yards that often are postage-stamp-sized.

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