Thursday, 25 April 2019
Occasionally in the rich tapestry of life we share together on planet Earth someone or something comes along to make a difference. One such person is the Swedish teenager Greta Thunberg, who spoke eloquently and with conviction to the UK Parliament this week. Her urgent words on climate breakdown were fresh, sharp and precise - a prophetic call to action that we continue to ignore at our future peril. Regular readers of So Said the Lighthouse Keeper will know her concerns have a deep resonance with the writer and so they are reproduced here in full. Please read on - it is time to reflect, consider and act.
"My name is Greta Thunberg. I am 16 years old. I come from Sweden. And I speak on behalf of future generations.
I know many of you don’t want to listen to us – you say we are just children. But we’re only repeating the message of the united climate science.
Many of you appear concerned that we are wasting valuable lesson time, but I assure you we will go back to school the moment you start listening to science and give us a future. Is that really too much to ask?
In the year 2030 I will be 26 years old. My little sister Beata will be 23. Just like many of your own children or grandchildren. That is a great age, we have been told. When you have all of your life ahead of you. But I am not so sure it will be that great for us.
I was fortunate to be born in a time and place where everyone told us to dream big; I could become whatever I wanted to. I could live wherever I wanted to. People like me had everything we needed and more. Things our grandparents could not even dream of. We had everything we could ever wish for and yet now we may have nothing.
Now we probably don’t even have a future any more.
Because that future was sold so that a small number of people could make unimaginable amounts of money. It was stolen from us every time you said that the sky was the limit, and that you only live once.
You lied to us. You gave us false hope. You told us that the future was something to look forward to. And the saddest thing is that most children are not even aware of the fate that awaits us. We will not understand it until it’s too late. And yet we are the lucky ones. Those who will be affected the hardest are already suffering the consequences. But their voices are not heard.
Is my microphone on? Can you hear me?
Around the year 2030, 10 years 252 days and 10 hours away from now, we will be in a position where we set off an irreversible chain reaction beyond human control, that will most likely lead to the end of our civilisation as we know it. That is unless in that time, permanent and unprecedented changes in all aspects of society have taken place, including a reduction of CO2 emissions by at least 50 percent.
And please note that these calculations are depending on inventions that have not yet been invented at scale, inventions that are supposed to clear the atmosphere of astronomical amounts of carbon dioxide.
Furthermore, these calculations do not include unforeseen tipping points and feedback loops like the extremely powerful methane gas escaping from rapidly thawing arctic permafrost.
Nor do these scientific calculations include already locked-in warming hidden by toxic air pollution. Nor the aspect of equity – or climate justice – clearly stated throughout the Paris agreement, which is absolutely necessary to make it work on a global scale.
We must also bear in mind that these are just calculations. Estimations. That means that these “points of no return” may occur a bit sooner or later than 2030. No one can know for sure. We can, however, be certain that they will occur approximately in these timeframes, because these calculations are not opinions or wild guesses.
These projections are backed up by scientific facts, concluded by all nations through the IPCC. Nearly every single major national scientific body around the world unreservedly supports the work and findings of the IPCC.
Did you hear what I just said? Is my English OK? Is the microphone on? Because I’m beginning to wonder.
During the last six months I have travelled around Europe for hundreds of hours in trains, electric cars and buses, repeating these life-changing words over and over again. But no one seems to be talking about it, and nothing has changed. In fact, the emissions are still rising.
When I have been travelling around to speak in different countries, I am always offered help to write about the specific climate policies in specific countries. But that is not really necessary. Because the basic problem is the same everywhere. And the basic problem is that basically nothing is being done to halt – or even slow – climate and ecological breakdown, despite all the beautiful words and promises.
The UK is, however, very special. Not only for its mind-blowing historical carbon debt, but also for its current, very creative, carbon accounting.
Since 1990 the UK has achieved a 37 percent reduction of its territorial CO2 emissions, according to the Global Carbon Project. And that does sound very impressive. But these numbers do not include emissions from aviation, shipping and those associated with imports and exports. If these numbers are included the reduction is around 10% since 1990 – or an an average of 0.4 percent a year, according to Tyndall Manchester.
And the main reason for this reduction is not a consequence of climate policies, but rather a 2001 EU directive on air quality that essentially forced the UK to close down its very old and extremely dirty coal power plants and replace them with less dirty gas power stations. And switching from one disastrous energy source to a slightly less disastrous one will of course result in a lowering of emissions.
But perhaps the most dangerous misconception about the climate crisis is that we have to “lower” our emissions. Because that is far from enough. Our emissions have to stop if we are to stay below 1.5-2C of warming. The “lowering of emissions” is of course necessary but it is only the beginning of a fast process that must lead to a stop within a couple of decades, or less. And by “stop” I mean net zero – and then quickly on to negative figures. That rules out most of today’s politics.
The fact that we are speaking of “lowering” instead of “stopping” emissions is perhaps the greatest force behind the continuing business as usual. The UK’s active current support of new exploitation of fossil fuels – for example, the UK shale gas fracking industry, the expansion of its North Sea oil and gas fields, the expansion of airports as well as the planning permission for a brand new coal mine – is beyond absurd.
This ongoing irresponsible behaviour will no doubt be remembered in history as one of the greatest failures of humankind.
People always tell me and the other millions of school strikers that we should be proud of ourselves for what we have accomplished. But the only thing that we need to look at is the emission curve. And I’m sorry, but it’s still rising. That curve is the only thing we should look at.
Every time we make a decision we should ask ourselves; how will this decision affect that curve? We should no longer measure our wealth and success in the graph that shows economic growth, but in the curve that shows the emissions of greenhouse gases. We should no longer only ask: “Have we got enough money to go through with this?” but also: “Have we got enough of the carbon budget to spare to go through with this?” That should and must become the centre of our new currency.
Many people say that we don’t have any solutions to the climate crisis. And they are right. Because how could we? How do you “solve” the greatest crisis that humanity has ever faced? How do you “solve” a war? How do you “solve” going to the moon for the first time? How do you “solve” inventing new inventions?
The climate crisis is both the easiest and the hardest issue we have ever faced. The easiest because we know what we must do. We must stop the emissions of greenhouse gases. The hardest because our current economics are still totally dependent on burning fossil fuels, and thereby destroying ecosystems in order to create everlasting economic growth.
“So, exactly how do we solve that?” you ask us – the schoolchildren striking for the climate.
And we say: “No one knows for sure. But we have to stop burning fossil fuels and restore nature and many other things that we may not have quite figured out yet.”
Then you say: “That’s not an answer!”
So we say: “We have to start treating the crisis like a crisis – and act even if we don’t have all the solutions.”
“That’s still not an answer,” you say.
Then we start talking about circular economy and rewilding nature and the need for a just transition. Then you don’t understand what we are talking about.
We say that all those solutions needed are not known to anyone and therefore we must unite behind the science and find them together along the way. But you do not listen to that. Because those answers are for solving a crisis that most of you don’t even fully understand. Or don’t want to understand.
You don’t listen to the science because you are only interested in solutions that will enable you to carry on like before. Like now. And those answers don’t exist any more. Because you did not act in time.
Avoiding climate breakdown will require cathedral thinking. We must lay the foundation while we may not know exactly how to build the ceiling.
Sometimes we just simply have to find a way. The moment we decide to fulfil something, we can do anything. And I’m sure that the moment we start behaving as if we were in an emergency, we can avoid climate and ecological catastrophe. Humans are very adaptable: we can still fix this. But the opportunity to do so will not last for long. We must start today. We have no more excuses.
We children are not sacrificing our education and our childhood for you to tell us what you consider is politically possible in the society that you have created. We have not taken to the streets for you to take selfies with us, and tell us that you really admire what we do.
We children are doing this to wake the adults up. We children are doing this for you to put your differences aside and start acting as you would in a crisis. We children are doing this because we want our hopes and dreams back.
I hope my microphone was on. I hope you could all hear me."
Tuesday, 2 April 2019
|Image: James Vaughan|
IN ITS relatively short, six-decade history space exploration and its commercial applications have come to be perceived as cutting-edge, inspirational and a hugely beneficial pursuit for humankind in general.
But one of the biggest challenges faced today by the global space community and its new frontier entrepreneurs is arguably one of the least glamorous. How to deal with the increasing volume of space junk and debris orbiting Earth?
The dangers stacking up in Earth orbit are largely the result of the old “use it and throw it
away” mentality prevalent throughout the early decades of space exploration, although certainly not unique to the Space Age.
Take a look at the detritus created by a modern, technologically literate human society right across our 21st century planet and you will see that such a throwaway culture seems firmly embedded in the human psyche.
But given our ever-growing reliance on orbiting technology, ensuring the lifetime safety of flight for satellites and future astronauts is now more important than ever because, if left unchecked, the dangers posed by space debris will rise exponentially.
A cascading debris event - the spontaneous timing of which is wholly unpredictable by its nature - could have a devastating effect on the space infrastructure we have come to rely on so much.
Even as we transition from ‘old space’ to ‘NewSpace’ the preponderance of space debris shows little sign of abating. Despite some welcome initiatives, practical answers are still largely in their infancy.
So, if we want to maintain a rapidly evolving space programme that is both everyday and frontier, dealing with a problem of this magnitude can no longer be just an altruistic, desirable goal to be addressed “at some point in the future”. Space is too valuable for that.
Time is short but if we establish and adhere to basic guidelines, solutions are just about achievable. The space debris problem needs a two-pronged approach - cleaning up the junk we’ve already created and establishing international agreements to prevent it getting worse.
Our technological and commercial futures are at stake and the onus is on the whole space community to ensure the mess we’ve created on Earth isn’t replicated in orbit around our planet. Ultimately, safety in space is key for all operators and so far remedial actions are not being agreed or put in place anything like as quickly as they should be.
If it can’t be re-entered at the end of its useful life the ultimate goal for anything that goes into Earth orbit is to “retain, re-use and recycle”. But, of course, it is so often a question of commercial priorities - and looking after one’s own space junk doesn’t really pay.
The special series of articles on the following pages in this issue of ROOM is a welcome addition to the space debris debate. Each article addresses a different aspect and together they highlight the problems, challenges and some of the potential solutions.
Just as it is on Earth, now it is in space. And when it comes to anthropogenic space debris the question has to be asked: are we doing too little too late?
Foreword from the Spring 2019 edition of ROOM - The Space Journal