Posts tagged carbon
What is 'irrecoverable carbon' and how do we protect the ecosystems that store it?

World Economic Forum

November 25, 2021
Throughout this past summer, wildfires ravaged forests from California to Siberia, devastating wildlife, and turning entire communities to dust. But as affected countries deal with the visible damage, the whole world will have to reckon with an unseen consequence for decades to come: a massive release of greenhouse gas.

It’s easy to forget that the ground beneath us contains far more than just dirt, even in some of Earth’s most rugged environments. All kinds of ecosystems — lush rainforest, muddy peatland, shady mangroves — contain eons of stored carbon, captured by photosynthesis. Worldwide, there are about 730 gigatons of manageable carbon locked away in nature; and if disturbed by fire, agriculture, or development, these stores can vanish, sending long-stored emissions right back into the air. As humanity works to prevent runaway climate change, this kind of unplanned expense could quietly bust our carbon budget.

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Jeff Bezos, who recently flew into space, vows to do more to protect the Earth.

New York Times

November 2, 2021
Jeff Bezos, one of the richest humans on the planet, and who started his financial empire by selling books online, pledged $2 billion to restoring natural habitats and transforming food systems at the climate summit in Glasgow on Tuesday.

Speaking at a conference where President Biden and other leaders announced a global pact to end deforestation by 2030, Mr. Bezos said that private industry must play a central role in the campaign.

“Amazon aims to power all its operations by renewable energies by 2025,” he said, restating his goal for the company to be carbon-neutral by 2040.

That will be a sizable challenge.

Amazon said, for example, that the company’s emissions from indirect sources had increased 15 percent last year over 2019. The company has pointed out that when its emissions are measured relative to its booming sales, its carbon footprint has been decreasing. But some climate experts say this calculation, called carbon intensity, obscures that the company is still generating an increasing amount of carbon.

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Nature Can Save Humanity From Climate Doom—but Not On Its Own

Wired

May 25, 2021
The biggest hint nature ever gave humanity was when it sequestered fossil fuels underground, locking their carbon away from the atmosphere. Only rarely, like when a massive volcano fires a layer of coal into the sky, does that carbon escape its confines to dramatically warm the planet.

But such catastrophes hint at a powerful weapon for fighting climate change: Let nature do its carbon-sequestering thing. By restoring forests and wetlands, humanity can bolster the natural processes that trap atmospheric carbon in vegetation. As long as it all doesn’t catch on fire (or a volcano doesn’t blow it up), such “nature-based solutions,” as climate scientists call them, can help slow global warming.

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Is bottom trawling for fish bad for the climate?

BBC World Service

May 24, 2021
More than two thirds of our planet is covered by the oceans, but there’s still much to be uncovered about the role that these watery worlds play in climate change.

But recent scientific research claims that bottom trawling, a method of fishing that involves dragging heavy nets across the seafloor, emits about the same amount of carbon annually as aviation. Seabed sediments, which act as huge carbon sinks, are churned up, resulting in carbon dioxide emissions. So should trawling – commonplace around the globe because of its effectiveness – be reduced? And has the climate change impact of bottom trawling been exaggerated?

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Green pandemic recovery essential to close climate action gap – UN report

UNEP

December 9, 2020
A green pandemic recovery could cut up to 25 per cent off predicted 2030 greenhouse gas emissions and bring the world closer to meeting the 2°C goal of the Paris Agreement on Climate Change, a new UN Environment Programme (UNEP) report finds.

UNEP’s annual Emissions Gap Report 2020 finds that, despite a dip in 2020 carbon dioxide emissions caused by the COVID-19 pandemic, the world is still heading for a temperature rise in excess of 3°C this century.

However, if governments invest in climate action as part of pandemic recovery and solidify emerging net-zero commitments with strengthened pledges at the next climate meeting – taking place in Glasgow in November 2021 – they can bring emissions to levels broadly consistent with the 2°C goal.

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How we can protect irrecoverable carbon in Earth’s ecosystems

The Weather Network

April 21, 2020
Scientists say that more conservation efforts are needed to ensure that ecosystems can continue absorbing large amounts of carbon dioxide.

Earth Day is celebrated each year on April 22 and this year marks the 50th anniversary since the campaign first launched. The event encourages increased awareness of the environment as well as actions and commitments that will reduce the negative impacts humans have on the planet.

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