Oceans on the Brink: Dying Plankton, Dead Zones, Acidification

A number of marine diatom cells

By Stephen Leahy

[Originally published Jul 31, 2010 for the Inter Press Service (IPS)]

The oceans are the lifeblood of our planet and plankton its red blood cells. Those vital “red blood cells” have declined more than 40 percent since 1950 and the rate of decline is increasing due to climate change, scientists reported this week. (Update Dec 2016: New analysis show this is an overestimate. See my comment below.)

Phytoplankton are a critical part of our planetary life support system. They produce half of the oxygen we breathe, draw down surface CO2, and ultimately support all of our fisheries,” said

Boris Worm of Canadas Dalhousie University and one of the worlds leading experts on the global oceans.

“An ocean with less phytoplankton will function differently,” said Worm, the co-author of a new study on plankton published this week in Nature. Plankton are the equivalent of grass, trees and other plants that make land green, says study co-author Marlon Lewis, an oceanographer at Dalhousie.

“It is frightening to realise we have lost nearly half of the oceans’ green plants,” Lewis told IPS.

“It looks like the rate of decline is increasing,” he said.

A large phytoplankton bloom in the Northeast Atlantic -NASA Earth Observatory Collection.

[See also my series of articles on ocean acidification]

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Climate change is warming the oceans about 0.2C per decade on average. This warmer water tends to stay on top because it is lighter and essentially sits on top of a layer of colder water. This layering, or stratification, is a problem for light-loving plankton because they can only live in the top 100 to 200 meters.

Eventually they run out of nutrients to feed on unless the cold, deeper waters mix with those near the surface. Ocean stratification has been widely observed in the past decade and is occurring in more and larger areas of the world’s oceans. Continue reading

Climate Change Explained in 165 Words

The moon has no atmosphere so it is scorching hot (+100C) during the day and bitterly cold (-150C) at night. The Earth has an atmosphere made up of oxygen, nitrogen, carbon dioxide (CO2) and other gases. Over 150 years ago scientists proved that CO2 traps heat from the sun. We also know without any doubt that burning fossil fuels like oil, gas and coal emits CO2.

Measurements, not computer models or theories, measurements show that there is now 46% more CO2 in the atmosphere than 150 years ago before massive use of fossil fuels. That extra CO2 is like putting another blanket on at night even though you are already nice and warm.

The Earth is now 1.0 C hotter on average according to the latest measurements. Heat is a form of energy and with so much more energy in our atmosphere our weather system is becoming supercharged resulting in stronger storms, worse heat waves, major changes in when and where rain falls and more.

[For story behind this explanation – a Russian journalist and a bar are involved – click here. (only 320 words!)]

terrifying co2 graph
Graphic by Peter Gleick, President-Emeritus/Chief Scientist Pacific Institute
consensus_500
These climate experts publish studies in peer-reviewed journals like Nature or Science. There is a something called the ‘Oregon Petition’ that claims otherwise. However some of the signatories are fraudulent, such as Charles Darwin and members of the Spice Girls, and less than 1% of signatories have backgrounds in climate science.

Global Warming Explained… in 320 words

carbon-neutral-pub
Briton’s 1st carbon-neutral pub (Aston-Hayes)

One night in a bar a Russian journalist who I’d just met says:  “This global warming is too complicated for people to know if it’s real or not”.

“You don’t think climate change is happening?” I asked with surprise since we were both covering a big United Nations climate conference.

“No one has been able to give me a good explanation to prove it’s real,” said Yuri (not his real name).

“I can explain it to you in less than one minute,” I replied.

Yuri was sceptical but I went ahead and said:

“The moon has no atmosphere so it is scorching hot (+100C) during the day and bitterly cold (-150C) at night. The Earth has an atmosphere made up of oxygen, nitrogen, carbon dioxide (CO2) and other gases. Over 150 years ago scientists proved that CO2 traps heat from the sun. We also know without any doubt that burning fossil fuels like oil, gas and coal emits CO2.

Measurements, not computer models or theories, measurements show that there is now 42% more CO2 in the atmosphere than 150 years ago before massive use of fossil fuels. That extra CO2 is like putting another blanket on at night even though you are already nice and warm. The Earth is now 1.0 C hotter on average according to the latest measurements. Heat is a form of energy and with so much more energy in our atmosphere our weather system is becoming supercharged resulting in stronger storms, worse heat waves, major changes in when and where rain falls and more.

That’s it.

After a long silence Yuri says “I guess that makes sense…”.

I’m not sure he was convinced but the truth is that climate change is not that complicated.

One additional thing to know is that CO2 is forever. Every little CO2 molecule we add to the atmosphere will continue to trap the sun’s heat for hundreds and thousands of years.

First published Aug 2015

terrifying co2 graph

Why the Paris Agreement is Historic – In 60 Words

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Every country in the world just agreed to:

1. Phase out fossil fuels well before the end of the century

2. Try to keep global warming to less than 1.5C (very difficult since it’s already 1.0C)

3. Rich countries will help poor countries to green their economies, help pay for the damages from climate impacts and help them adapt to future impacts.

[The Paris Agreement is like buying life insurance. It’s for the benefit of our children and grandchildren.]

Paris Climate Talks – What Does “Emissions Neutrality” Mean?

cop21 logo smlWhat Does “Emissions Neutrality” Really Mean?

Explainer:
Negotiators have deleted specific emission reduction targets for the long-term goal i.e. +2050. Thursday night in Paris a new proposal surfaced for “greenhouse gas (GHG) emissions neutrality in the second half of the century, on the basis of equity and guided by science in the context of sustainable development and poverty eradication”.

This should mean zero GHG emissions from all sectors by first reducing emissions to near zero and then using negative emissions (taking CO2 etc out of the atmosphere) to achieve net zero.

Defining it as GHG neutrality vs carbon neutrality is very important from climate science perspective. In 2012, 23% of emissions were non-CO2 greenhouse gases.

Bottom line:

There is no way to get to 1.5C or 2.0C without GHG neutrality before 2100. What’s missing in the agreement is a specific time table – “second half of the century” is pretty vague. Expect this to change at some future COP (yes there will be many more) when the science catches up with figuring out what is needed to achieve it.

Paris Climate Talks – Reactions to New Dec 10 Text

Things are moving faster than expected, debate continues overnight with hopes of a final agreement ready to be voted on late Friday. We’ll see. Remember this is a consensus process, one country can hold up the rest. 

NEW TEXT HEREcop21 logo sml

It is slightly longer with about 50 brackets – down from 150 to 200. 

Some reactions in the order they were made:

“The standard of any effective climate policy is clear: does it keep fossil fuels in the ground and accelerate a just transition to 100% renewable energy?

The commitments we are seeing in the text are a start, but they won’t get the job done, so activists are already mobilizing to close the gap between rhetoric and reality.”
— Payal Parekh, 350.org Global Managing Director

At first glance happy with new COP21 draft – target ‘well below 2C’ and ’emissions neutrality’ in 2050-2100 both ambitious but achievable
— Corinne Le Quéré (@clequere)

$100bn confirmed as rich nations’ floor in new draft Paris #COP21 text. Left – today Right – yesterday
— Simon Evans (@DrSimEvans)

#Oceans #biodiversity & “Mother Earth” out of #brackets in Preamble #update #UNFCCC #COP21
— Paris Agreement News (@ParisAgreement)

Binding part of new #climate agreement draft no longer includes #humanrights – that is going to upset a lot of people
— Megan Rowling ‏@meganrowlin

I see “people in vulnerable situations and under occupation” remains… here’s why that’s a little tricky: http://www.climatechangenews.com/2015/12/07/israel-palestine-conflict-seeps-into-paris-climate-talks-in-human-rights-row/
— Edward King

As I’ve been saying, addition of 1.5C wording is about recognizing harm to small islands and other countries #COP21 pic.twitter.com/Cw4Di5dtGz
Simon Donner (@simondonner)

3rd draft is out. No liability/compensation. Adriano Campolina of @ActionAid called it “draft deal that denies the world justice”
— Stella Paul (@stellasglobe)

By including a clause for no future claim of compensation and liability, the US has ensured people suffering from the disastrous impacts of climate change will never be able to seek the justice owed to them.

This unfair and unjust draft deal won’t face up to the realities of climate change and will only serve to widen the chasm between rich and poor.Rich countries have a responsibility to ensure a fair global deal for everyone, not just themselves, and as we move into these final hours of negotiations poorer countries must not settle for anything less.
— Adriano Campolina, ActionAid Chief Executive

New #COP21 text is remarkably streamlined. But big issues on target, differentiation (funding) & transparency still open. Important progress
— Simon Lewis (@SimonLLewis)

First published on the Climate News Mosaic Paris Climate Talks Live Blog available here:
Inter Press Service News Agency (International)
DeSmog Blog (Seattle)
Philippine EnviroNews (Philippines)
Earth Journalism (International)
Watson (Switzerland)
Skeptical Science (International)

Paris Climate Talks – Peak CO2 Already?

Screen Shot 2015-12-07 at 3.32.09 PM
Have We Reached the Crucial Peak in Global CO2 Emissions?
New report released today says CO2 emissions will likely decline this year for the first time after growing 2-3% per year for last 15 years.

“Whether a slower growth in global emissions will be sustained depends on the use of coal in China and elsewhere, and where new energy will come from. In 2014, more than half of new energy needs in China were met from renewable sources such as hydro, nuclear, wind, and solar power.” — Corinne Le Quéré, Director of the Tyndall Centre

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Paris Climate Talks: Cities are 70% of C02 Emissions – Fighting to be Climate Leaders

By Stephen Leahy

National Governments Should Be Helping Green Cities

Cities are responsible for 70 per cent of global CO2 emissions but they can save the planet by greening one community at a time said Vancouver’s David Cadman at the close of the ICLEI World Congress 2015, the triennial sustainability summit of local governments in Seoul, South Korea.

cop21 logo sml“We can do it. We must do it,” Cadman, the retiring president of Local Governments for Sustainability, told some 1,500 delegates from nearly 1,000 cities and local governments in 96 countries on April 11.

The majority of climate actions and most plans to reduce CO2 emissions are happening at the city level, Cadman told DeSmog Canada in Seoul.

Vancouver and 50 other cities have committed to 100 per cent renewable energy and 500 more are part of ICLEI’s Cities Climate Registry that documents verifiable CO2 emission reduction actions and commitments that amounted to 2.8 billion tons a year in 2014.

Cadman, a former City of Vancouver councillor, has been president of ICLEI since 2006. It’s an international organization headquartered in Bonn, Germany, with 280 staff and 23 other offices scattered around the globe. ICLEI, which stands for International Council for Local Environmental Initiatives, started 25 years ago in Toronto to help cities become more sustainable. It now goes by the more manageable name of “Local Governments for Sustainability,” but still uses the original acronym.

Canada’s federal and provincial governments were very strong supporters in the early days but the past decade has been very different.

Canada Chained to Fossil Fuel Sector

“We seem to be chained to the fossil energy industry in Canada and it’s pulling us down. Cities and organizations can hardly dare to speak out about this now,” he said.

Germany was only too happy to bring ICLEI to Bonn eight years ago and has been generous with its support, along with the European Union. Now the organization is experiencing what is being called an “Asian pivot,” with the mayor of Seoul, Park Won Soon, as the new president.

Park has helped Seoul to become one of the world’s leaders on sustainable development. With 11 million people and growing fast, Seoul will reduce its energy use and increase renewable generation including rolling out 40,000 solar panels to households by 2018 and 15,000 electric vehicles. By 2030, CO2 emissions will be cut 40 per cent.

“Action on climate will be by local governments no matter what national governments decide,” Park Won Soon told DeSmog Canada.

“We need to act quickly, we need to act energetically,” the mayor said.

China’s megacities are also joining ICLEI. At the congress, Hailong Li, deputy secretary general of the China Eco-city Council said the country will have 100 low-carbon eco-cities by 2017. That will drive down the costs of energy efficiency and renewable energy, Li said.

China also intends to become an expert on eco-construction and to market its expertise to the rest of the developing world.

By 2030 another 3.5 billion people will be living in cities so it is absolutely critical that the infrastructure be sustainable said Cadman who will continue to be active as special representative to the new ICLEI President.

Canadian cities could also do more and sooner if they had the support of provincial and federal governments, he said. That may be changing at the provincial level with growing support for various forms of carbon taxes that will help generate funds and financial incentives to reduce emissions.

“The provinces are doing the heavy-lifting on climate while the Harper government sits on the sidelines.”

Fossil fuels are in decline — divestment is taking off and investments are shifting to renewable energy. There’ll be no pipelines to the West Coast and no new investments in the oilsands, Cadman said.

Even in B.C., the hoped-for markets for LNG may not exist with China building gas pipelines to tap reserves in Iran and Russia, he said.

“Canada needs to move away from selling raw resources, but is any political party ready to go there?”

First published April 2015

Paris Climate Talks: Three Major Issues

The main issue in Copenhagen in 2009 was determining each country’s fair share of CO2 emission reductions cuts and by when. If a flag could be attached to every CO2 molecule humanity has put into the atmosphere over the last 150 years, about 70 percent would be the flags of wealthy countries: the U.S., United Kingdom, Germany and so on.

Those rich nations agreed to make some CO2 cuts by 2020 but they were mostly small and voluntary. In exchange poor countries were promised $100 billion a year by 2020.

How much has changed at COP 21?cop21 logo sml

#1 Most countries have filed their plans for emissions reductions but they aren’t big enough to keep temperatures below 2C, never mind 1.5C. There is agreement more cuts are needed but the big issue is when. Europe and small countries want to see another round of cuts every 5 years starting as soon as 2020. Other countries like India want longer time frames.

 #2 Money has always been issue. In Copenhagen rich countries promised $100 billion a year by 2020 to help poor countries cope with climate impacts and  to green their economies. The money was supposed to ramp up from about $10 billion a year in 2010. Instead it’s been a fight to get any funds. Now developing countries want  guaranteed amounts from 2015 to 2020.

#3 Legally binding agreement. For the first time the US is saying it will agree to this for parts of an eventual Paris Climate Agreement. The US will not sign a legal-binding emission reduction target, Todd Stern, the chief negotiator said today.

First posted on Climate News Mosaic Live Blog available at Inter Press Service  news