Climate change innovation – Page 11

November 17, 2021June 29, 2022

A trial of Silvopasture in Devon

I wrote about Silvopasture recently, there is now a trial going on down in Devon. A farmer is now planting huge numbers of trees sparsely across his land. Each row has trees roughly every 6m and each row is roughly 14m apart.

This will produce a patchwork of shade and sun.

Trees being planted are Oak Aspen and Alder – native British species.

Neighbours have suggested that he is mad, and concreting over his land would have the same benefit. Of course common sense would suggest that concreting over the land would leave far less grass than sparsely planted trees but there we are.

5600 trees will be planted across his 165 acre farm. He is taking part in a 12 year trail to see what benefit Silvopasture can have. The expectation is that the environment will benefit, but that there should also be increased productivity for the farmer.

If it can be shown that grazing sheep under sparse woodland increases yield, roughly 63% of agricultural land could have similar treatment. This could amount to hundreds of millions of trees across the country.

Studies elsewhere suggest benefits include reducing flooding increasing drought resilience, improving animal health and weight, as well as boosting biodiversity and sequestering vast quantities of carbon.

November 4, 2021June 30, 2022

Renewable energy could save more than $160 trillion in costs by 2050

There has been a constant argument that the cost of moving to renewable energy is too high. However, it is becoming clearer and clearer. Our descendants will quite rightly have a very low level of respect for us.

The idea of saving a small amount of investment now, and not worry about the trillions that this will cost in the future is quite disgusting. What is more foolish, is that while many of these clean technologies do cost now, they will save far more money in the future.

Throughout human history, the human race has fought to leave a better life for their children. Are we seriously saying that we are the first generation who is going to say we don’t care if we make life harder?

IRENA did the analysis, and the found that while global energy demands are likely to double by 2050, 86% of the 2050 demands could be met from renewable energy. The majority of this increase could be met through wind and solar. However, progress is not constant; Trumps foolish solar tariffs the USA lost 20,000 solar energy jobs – talk about America first!

The faster the transition, the greater the impact on the climate change fight. We dont just need to clean up our act, we are going to have to deal with all the damage from the last 2 centuries, and the quicker we make the change, the less clean up we will have to do.

November 3, 2021June 30, 2022

Placing small wind turbines on street lamps? interesting idea

Street lamps do not consume a great deal of electricity. Unfortunately, as there are many of them this rapidly builds up.

A new turbine that spins horizontally rather than vertically may make a big difference. Apart from anything, these turbines will be forced to turn as traffic passes, guaranteeing plenty of electricity each day. While these turbines are never going to make large amounts of power, given the large number of street lamps around the UK, it could generate a lot of power (it is estimated that it could create 6mw of power a day, enough to power a small village.

November 1, 2021June 30, 2022

The race to develop plastic eating bacteria – still years out

In 2016 a special type of bacteria was found on a Japanese dump. While incredibly fast progress is being made, experts warn that their use is still probably years away. The other concern, is that they may leak into the environment. If this were to happen damages could be incredible.

October 29, 2021June 30, 2022

A new disruptive airplane design?

The last time that I wrote about a potential Airline disrupter was back in late March. Interestingly, the source article was written back at this point but I didn’t find it for a few months.

In this case, the change is in design rather than in the fuel (the last article on planes was looking at using biofuels made from algae. I should note, that this is probably possible to power any aircraft, so both changes could team up.

In this case, rather than changing the fuel, the layout of the plane was changed. Rather than 1 relatively thick wing, they replaced it with 3 thin wings distributed along the body of the plane.

By having 3 sets of narrow wings, each part of the plane is supported.

One of the main advantages of this design, is that there is no natural rotating point. Generally the tail of the plan is required to keep the plane flying level (this tail is recognized as one of the most problematic parts of the plane in terms of efficiency).

Why is this design exciting? Well this plane would have a carbon footprint 70-80% lower than current aircraft. This means that it is incredibly cheap to run, and therefore cheaper for passengers to fly on. Also of interest is the fact that this design makes the aeroplane far safer. Due to its higher efficiency it can also fly an incredibly long way – 10,500 miles, far enough to easily fly London to Australia ( this would suggest that perhaps in the future, non stop flights to new Zealand are not too far off). Another advantage, is that due to its low drag coefficient, it would fly at 690 miles per hour (mach 0.9) – more than 100 miles an hour faster than normal passenger jets. In a similar way, London to Johannesburg would be a little over 8 hours.

So this plane would be cheaper to fuel, fly further and faster. It is predicted to be far cheaper to maintain, and to have a life span of twice current planes. It would have a wider body, so take more passengers than normal. It has a high lift coefficient, allowing it to take off from shorter runways, allowing it to access more of the world. Due to the how thing the wings are, they would not be able to store fuel anymore, so this would have to go in the proper body of the plane – current plans would be at the top of the plane over the passengers. As well as having a lifespan of roughly 50 years, it is thought that each plane will take half as long to build.

Whether we see an aircraft like this is anyone’s guess. Moving to one engine at the rear of the plane, probably rules out electric propulsion, though who knows. Of course with wings as slim as this it is unlikely to be able to accommodate dispersed power.

October 24, 2021June 30, 2022

Global warming is happening, and even with the cuts promised, we are likely to see significant sea level rises: what is this likely to cost

It is an unfortunate fact, all over the world, that people have chosen to live near the sea. There are many reasons for this, but the basic fact is that this is often the most productive land.

The problem now, though, is that all these peoples lives are liable to change. This is because small rises in sea levels could make them homeless. As much as 1 billion people live at low enough elevation to make this a threat.

Countries like Bangladesh are very flat, and it is estimated that as many as 20 million people within Bangladesh would become homeless by 2050 under current trends (this assumes that we meet our carbon cut targets. There would be many others that would be lost.

Forgetting the hundreds of millions of people in the developing world, there are famous buildings and places which should underline this issue in the west as well.

Buckingham palace would be under water up to the first floor if we fail to act. A temperature rise of 1.5 degrees C would merely bring the water level to the front door. Many other famous buildings such as the pentagon, the tower of London and Tokyo tower in Japan would all be lost.

This is all a long winded way of stating, that even with the dramatic cuts the world is hoping to make over the next few decades, many people on earth are still likely to loose their lives have their lives changed dramatically, in most cases for the worse.

October 23, 2021June 30, 2022

The former head of the British financial services authority has suggested population decline and smaller families are good for the Climate; and?…

According to Lord Adair Turner, population decline should not be feared. It is certainly true that if the population of the UK were to shrink, so would our carbon emissions. Of course, this suggestion might have come with more authority if it had been made while he was still in post.

We have, in the last couple of centuries, unfortunately set up the financial world in such a way as to need a growing population. An increasing size of financial market in each country is required (according to current expertise) yet while there are some gains to be had in efficiency by each person, it is not possible for people to become more efficient endlessly. Furthermore, by this metric, a falling population would be a bad thing, as this would necessitate a shrinking market – even if it were shrinking slower than the population.

October 22, 2021June 30, 2022

In July local leaders in 9 districts in indonesia promised to protect 50% of peat forest and other important systems

This encompasses an area about the size of South Carolina, and is made up of about 75% forest with the rest peat.

Much wildlife live in these forests including orangutans, so this move is good for both carbon emissions and biodiversity.

October 21, 2021June 30, 2022

Will Cop26 over shadow Kunming?

Cop26 is essential, there is no doubt, however there is a similarly important threat that the world is facing, and if we are not careful we wont start fighting it until it is too late.

What is Kunming there to fight? It is there to fight loss of biodiversity. Biodiversity is essential for the well running of ecosystems around the world which can often collapse without enough biodiversity.

Indeed, it is actually a problem that Kunming and Cop26 have been split. What we need is for the two fights to be fought side by side.

I have written in the past, about the problems for the Congo rainforest that have been caused by the local extinction of forest elephants. Without many of the wild animals that exist in these landscapes the forests and peat lands and grass lands will fail, releasing their huge carbon stocks back into the air.

These two must be tied together

October 21, 2021June 30, 2022

Only 10% of the $17 trillion spent on Covid recovery went toward projects that would cut carbon emissions and restore nature

There is a constant complaint from vested interests, that the price of greening the world economy is just too high. Of course, when the world-wide economy needs a boost, these concerns go out of the window (until the emergency is over, then even these costs might be used to argue against saving the planet).

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