Global Climate change 2019

[TheLurch]

Even if we eliminate petroleum as a fuel, it is still has a LOT of uses: lubricants, plastics, asphalt, paint, and more. Not all are putting CO2 into the atmosphere. I don't think oil companies are going to disappear if we stop using fossil fuels.

No, but they would lose about 75% of their current business.

EDIT: to be more clear - the oil companies are just one facet of this. We haven't priced in sea level rise to our housing market. We haven't priced in rising temperatures in our wine growing regions. We haven't priced in drought into major agricultural regions like California. I suspect we're going to keep doing a "we must rebuild!" until we either get exhausted by it or run out of the money to do it.

I admit to being pessimistic about this, but humanity's given me good reason to be a pessimist, i'm afraid.

[shunyadragon]

The 20019 UN Climatethe global warming increase change reports came to the same conclusion I have expressed in recent years. The UN did the math and concluded that we cannot stop global warming, but we should continue with efforts to reduce Global Warming causes. See here: https://www.un.org/en/climatechange/science.shtml

We cannot stop the effects in terms of rising sea level and we cannot stand in front of the train and stop it, but the UN reports proposed we prepare to take advantage of changing climate in their Economic Report. The economic report focusing on developing strategies adapt to the changing climate.

[cite=https://newclimateeconomy.report/]

Map of action

Investigate factors that affect economy and climate from an interactive regional perspective, filtering various impacts.

We are entering a new era of economic growth. This approach can deliver growth that is strong, sustainable, balanced, and inclusive. It is driven by the interaction between rapid technological innovation, sustainable infrastructure investment, and increased resource productivity.







.

[shunyadragon]

On the surface Antarctic has escaped the effects of Global warming, because of the Antarctic Circumpolar Currents, but the Antarctic is experiencing the effects of Global Warming from warmer currents eroding the ice from below.

[cite=https://www.livescience.com/antarctica-ice-shelf-upside-down-rivers.html]

'Upside-Down Rivers' of Warm Water Are Carving Antarctica to Pieces

[shunyadragon]

Source: https://phys.org/news/2019-11-coastlines-contribution-climate-underestimated.html

Coastlines' contribution to climate change might have been underestimated

by Helmholtz Association of German Research Centres

Shoreline retreat and erosion along Arctic coasts (Qikiqtaruk-Herschel Island, Yukon Territory, Canada) rapidly mobilize organic carbon from permafrost deposits, which can be transformed quickly into carbon dioxide or methane. Credit: G. Tanski, Vrije Universiteit Amsterdam
Permafrost coasts make up about one third of the Earth's total coastline. As a result of accelerated climate change, whole sections of coastline rapidly thaw, and erode into the Arctic Ocean. A new study published in the journal Geophysical Research Letters now shows that large amounts of carbon dioxide are potentially being produced along these eroding permafrost coastlines in the Arctic.

"Carbon budgets and climate simulations have so far missed coastal erosion in their equations even though it might be a substantial source of carbon dioxide," says George Tanski of Vrije Universiteit Amsterdam, lead author of the study. "Our research found that the erosion of permafrost coastlines can lead to the rapid release of significant quantities of CO2, which can be expected to increase as coastal erosion accelerates, temperatures increase, sea ice diminishes, and stronger storms batter Arctic coasts."

The study was carried out during Tanski's time at the Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), and the GFZ German Research Centre for Geosciences. Co-Authors come from AWI, GFZ, and the Universities of Hamburg and Potsdam. The study is part of the Nunataryuk research project, coordinated by AWI. The project aims to analyse permafrost thaw, understand its impacts on indigenous communities and other populations, and develop mitigation and adaptation strategies.

For the new study, the researchers simulated the effects of erosion in a lab experiment. To find out how much carbon is released into the atmosphere along eroding Arctic permafrost coasts, they collected permafrost samples from Qikiqtaruk (also known as Herschel Island) off the northern coast of the Yukon in northwest Canada, and seawater from offshore. They mixed permafrost and seawater samples and then measured the greenhouse gases emitted over the course of four months, the average length of open-water season in the Arctic.

The researchers found that CO2 was released as rapidly from thawing permafrost in seawater as it is from thawing permafrost on land. Previous research had documented that thawing permafrost on land causes significant releases of greenhouse gases. This new research indicates that eroding permafrost coasts and nearshore waters are also a potentially notable source of CO2 emissions. It draws into question carbon budgets that have identified the coastal zone mainly as a point of passage for carbon from land to sea, neglecting possible carbon transport into the atmosphere.

© Copyright Original Source

[shunyadragon]

Explanation of the slight dip in global temperatures in the last century:

Source: https://www.sciencenews.org/article/50-years-ago-scientists-puzzled-over-slight-global-cooling?utm_source=email&utm_medium=email&utm_campaign=latest-newsletter-v2&utm_source=Latest_Headlines&utm_medium=email&utm_campaign=Latest_Headlines

50 years ago, scientists puzzled over a slight global cooling

© Copyright Original Source

[shunyadragon]

Research documents loss of river ice due to global warming.

Source: https://phys.org/news/2020-01-global-extent-river-ice-loss.html

New study estimates the global extent of river ice loss as Earth warms

by University of North Carolina at Chapel Hill

More than half of Earth's rivers freeze over every year. These frozen rivers support important transportation networks for communities and industries located at high latitudes. Ice cover also regulates the amount of greenhouse gasses released from rivers into Earth's atmosphere.

A new study from researchers in the University of North Carolina at Chapel Hill Department of Geological Sciences found that annual river ice cover will decline by about six days for every one degree Celsius increase in global temperatures. This decline will have economic and environmental consequences. The study, "The past and future of global river ice," was published Jan. 1 in the journal Nature. It is the first study to look at the future of river ice on a global scale.

"We used more than 400,000 satellite images taken over 34 years to measure which rivers seasonally freeze over worldwide, which is about 56% of all large rivers," said Xiao Yang, a postdoctoral scholar in the UNC-Chapel Hill geological sciences department and lead author on the paper. "We detected widespread declines in monthly river ice coverage. And the predicted trend of future ice loss is likely to lead to economic challenges for people and industries along these rivers, and shifting seasonal patterns in greenhouse gas emissions from the ice-affected rivers."

The team also looked at changes to river ice cover in the past and modeled predicted changes for the future. Comparing river ice cover from 2008-2018 and 1984-1994, the team found a monthly global decline ranging from .3 to 4.3 percentage points. The greatest declines were found in the Tibetan Plateau, eastern Europe and Alaska.

"The observed decline in river ice is likely to continue with predicted global warming," the study explains.

For the future, the team compared expected river ice cover through 2009-2029 and 2080-2100. Findings showed monthly declines in the Northern Hemisphere ranging from 9-15% in the winter months and 12-68% during the spring and fall. The Rocky Mountains, northeastern United States, eastern Europe and Tibetan Plateau are expected to take the heaviest impact.

"Ultimately, what this study shows is the power of combining massive amounts of satellite imagery with climate models to help better project how our planet will change," said UNC-Chapel Hill Associate Professor of global hydrology Tamlin Pavelsky.

© Copyright Original Source

Following in the near future when available the world temperature records for 2019, which will be among the warmest on record.

[shunyadragon]

Data is coming in for 2019.

Source: https://www.forbes.com/sites/trevornace/2019/01/31/so-far-2019-has-set-33-hottest-and-0-coldest-temperature-records/#f8acf5a505e9

So Far 2019 Has Set 33 Hottest And 0 Coldest Temperature Recordshttp://www.mherrera.org/temp.htm, has the reputation its precise weather data.

As much of the United States experiences extremely cold temperatures, one might think this disproves global warming. However, climate change and a warming planet are found to be responsible for the recent polar vortex.

Today In: Innovation
Forbes astrophysicist, Ethan Siegel summarizes the new normal:

As the Earth continues to warm, extreme weather events like this will become commonplace, with many climatologists predicting an unstable polar vortex bringing storms like this to us multiple times per decade. Welcome to the new normal, courtesy of global warming, where the Arctic can't even remain cold in the dead of winter.

© Copyright Original Source

[Sparko]

I had a wonderful Christmas with 70F weather.

[shunyadragon]

In the Piedmont this year has no winter, good fig and garlic crop for me, but bad news summer crops.The Bermuda highs are strong and arctic highs are weak. We may have a nasty spring.

[shunyadragon]

First, the strong winter Bermuda highs do bring early toronadoes to the Midwest.

More news of the impact of Global Warming:

Source: https://www.theguardian.com/environment/2020/jan/16/hot-blob-ocean-seabirds-killed-new-zealand-north-america

© Copyright Original Source

[shunyadragon]

Global warming is in full boar.2019 is the second warmest in recorded history, and the decade is the warmest in recorded history.

[Sparko]

Keep calm. It's just "weather"

[shunyadragon]

Keep calm. It's just "weather"

Weather is what the temperature and chances of rain or snow is tomorrow. Patterns and cycles of temperature and precipitation overtime in regions and the world represents the climate.

[Sparko]

Weather is what the temperature and chances of rain or snow is tomorrow. Patterns and cycles of temperature and precipitation overtime in regions and the world represents the climate.

What you meant to say is that, if the weather supports climate change, then it is climate. If it doesn't then it is weather.

[TheLurch]