CLIMATE CHANGE AND GLOBAL WARMING

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by plaques » 23 Jun 2020, 07:31

Some of the biggest famines in the Ukraine and Russia have been because of slight changes to the weather pattern that cause wheat crops to fail. A dry spell with less snowfall in early winter left the ground open to freezing winds followed by a wet spell causing the seed to rot, result famine. Warmer arctic temperatures may result in changes to the weather patterns that millions of people depend on.

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by chinatyke » 23 Jun 2020, 08:43

Won't there be just as many places that benefit from the climate change? Why concentrate on only the places that are negatively hit? Can't countries adapt to changes?
If less people survive then the Eco-system becomes self-correcting. The population decline also corrects the world economy! Simples! Tough on the poor buggers who fall by the wayside, I'm glad I'm old!

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 24 Jun 2020, 03:42

Malthus is alive and well.......
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 24 Jun 2020, 09:31

Chinatyke can work out the answers for himself so I'm not going do it for him. It will do him good to research the question! :extrawink:

This has been worrying me ever since the big push began to plant trees on a large scale. Like carbon credits, it was asking to be manipulated by the moneymakers - tear down native forest, plant more conifers in their place and create more sterile forests, free of significant wildlife...
`Climate change: Planting new forests 'can do more harm than good'' LINK

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 25 Jun 2020, 02:59

Indeed. Commercial conifer forests are dead. They also acidify the water table. In Scandinavia they blamed our east coast power stations for years for 'acid rain' and then discovered it was conifer forests that were the main contributor.
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 01 Jul 2020, 08:37

`Likelihood of 40C temperatures in UK is ‘rapidly accelerating’' Guardian

`Climate change: UK could hit 40C 'regularly' by end of this century' BBC

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 02 Jul 2020, 03:32

And basically a fractured world political system ensures that there is no meaningful cooperation.
I'm just reading Bolton's inside track on the US withdrawal from the Paris agreement and he says it was done because the 'agreement' was meaningless. In some ways I have to agree even though I deplore the reasoning.
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 03 Jul 2020, 08:46

The comment about smoke and covid infection is interesting. It might help prompt more action to prevent fires....
`Amazon fires at 13-year high for June' LINK
`Fires in Brazil's Amazon rainforest rose by almost 20% in June - a 13-year high for the month, according to government data. With such an increase at the start of the dry season, there are concerns that this year's fires could surpass 2019's disastrous blazes. Activists say the coronavirus pandemic is exacerbating the problem. They believe arson is likely to be even less monitored while authorities are stretched. Many forest fires in the country are started deliberately by illegal loggers and farmers wanting to quickly clear ground. Brazil has the world's second-highest coronavirus death toll, after the US, and there are also concerns that increased smoke could have a damaging effect on the breathing of virus patients. In June, the country's National Institute for Space Research (INPE) recorded 2,248 fires using satellite imagery, as opposed to 1,880 fires in June 2019. ..'.

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 04 Jul 2020, 03:09

The fires in Brazil... Very disturbing how Bolsonaro is handing both Covid and the fires. In many ways he out Trumps Trump!
I see increasing comment on the fact that Covid is making us take our eye off the ball with climate change and global warming. Legitimate I think, many of the bad guys are using the situation to promote their own ends. We even see evidence of that in the UK planning process!
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 09 Jul 2020, 04:41

See THIS BBC account of the report issued by The World Meteorological Organisation which says there's a growing chance that global temperatures will rise by more than 1.5C over the next five years, compared to pre-industrial levels.

Also, see THIS 2018 report. I can't find the recent one on rock dust but top dressing with specific forms of dust is giving good results. No doubt Tiz will be able to find it!
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 09 Jul 2020, 10:00

The rock dust idea is an attempt to accelerate the natural weathering of silicate rocks which is a very slow process involving physical erosion and chemical changes leading to incorporation of the carbon from rainwater CO2 to form carbonate minerals. This New Scientist report describes the project: `A sprinkle of rock dust could help avoid catastrophic climate change' LINK

This approach can only account for a small fraction of the CO2 we are putting into the atmosphere and it will use up a lot of energy to grind the rock to a fine dust. It does have the benefit of improving agricultural soils. However, to gain either benefit farmers would have to make a better job of stopping the wash out of silt from their fields into rivers. This is a growing problem and is ruining both the fields and the streams and rivers.

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Whyperion » 09 Jul 2020, 10:31

Terracing, Trees and Hedgerows normally mitigate wash out.

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 10 Jul 2020, 09:07

The government denies it, saying the report is based on old data - that sounds like Trump shouting `fake news' to me! :smile:
`Climate change: Road plans will scupper CO2 targets, report says' LINK

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 11 Jul 2020, 03:36

I agree Tiz. I don't understand why expanding roads and car use can't be bad for efforts to make a greener world.
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 16 Jul 2020, 04:55

See THIS BBC report on the latest assessment of the recent Siberian weather. The conclusion is that without global warming due to greenhouse gases the recent warm weather couldn't have happened.
Over to the deniers......
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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Tizer » 16 Jul 2020, 09:13

The short video in that article is a very good, easily understood presentation of the situation. At last the Met Office and other climate scientists are beginning to get over their initial shock at all the abuse they've received for warning about climate change.

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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Whyperion » 16 Jul 2020, 17:59


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Re: CLIMATE CHANGE AND GLOBAL WARMING

Post by Stanley » 17 Jul 2020, 02:39

True Peter, bolstered by an ever increasing mass of evidence.
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