NASA Vegetation Index: Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km!

[ChemEngineer]

You mean these published studies you never knew existed?

Higher than expected CO2 fertilization inferred from leaf to global observations

They all say the same basic thing, CO2 is the main cause of greening the world over.

Added to theglobalwarmingfraud


Go Tommy Go.

 

[abu afak]

Why not right FROM NASA Instead of SPUN from Crackpot BLOG WUWT/WTFUWT?

Greening Landscape Changes Air Flow
NASA Earth Observatory images by Joshua Stevens, using data from Chen, C., et al. (2020).
Story by Michael Carlowicz, with Kassie Perlongo, NASA Ames Research Center

For at least a century, air, ocean, and land temperatures on Earth have been steadily rising. For at least the past forty years, the planet has been growing a bit greener. Now researchers have found that the greening of the planet can change the movement of air near the land surface in ways that offset at least some warming. Essentially, global warming would be even worse were it not for extra greenery changing how and where heat builds up across the landscape.​

​

In 2019, remote sensing scientists Chi Chen, Ranga Myneni, and colleagues at Boston University used satellite observations to show that vegetation cover had increased globally by 5% since the early 2000s. In 2020, the research group linked that increase in greenness to a slight offset in global temperatures.​

​

Now, in a new study, Chen and colleagues have worked to decipher how that greening could affect land temperatures. Using satellite data and advanced computer models, they found that increased vegetation has a cooling effect that comes from an increased efficiency in the vertical movement of heat and water vapor between the land surface and atmosphere.​

​

There are several ways vegetation can alter temperatures at the surface. Changing leaf area can change albedo, or how much sunlight is absorbed or reflected by a landscape. More greenery can also change land surface resistance, or how well water can penetrate and be retained by soil and leaves. And it can change emissivity, or how the surface emits or reflects longwave radiation.​

​

But according to the new study, the strongest cooling effect comes from the way increasing leaf cover leads to less aerodynamic resistance, or how features on the ground increase or decrease drag and turbulence in the air above. In many environments, extra leaves can enhance the efficiency of vertical air mixing, allowing more heat and water vapor to rise into the atmosphere. Extra leaves may also increase the amount of water transpired (exhaled) by plants, allowing even more water to be transferred. That extra moisture can carry away a significant amount of heat from the ground level and lead to cooler surfaces.​

​

In their studies, Chen and colleagues have found that most vegetated areas on Earth (about 93%) see their land surfaces cool when leaf area increases. Since 2000, at least 30 percent of areas with more leaf coverage have been cooled by it, while 5% have grown warmer.​

​

The map at the top left of this page shows the trends in the “leaf area index” around the world from 2000 to 2014. Leaf area index (LAI) is a measure of the amount of leaf area relative to ground area during the growing season. LAI is computed from data acquired by the Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on NASA’s Terra and Aqua satellites. Note that the map does not show overall greenness, but how greenness has changed since 2000.​

​

The second map (above right) shows global changes in land surface temperatures over the same period due to the increased leaf area. It is derived from satellite observations and from the Community Land Model. Note that the map depicts land surface temperatures (LSTs), not air temperatures. LSTs reflect how hot the surface of the Earth would feel to the touch in a particular location, and they can sometimes be significantly hotter or cooler than air temperatures.​

​

“In the fight against climate change, plants are the lonely-only defenders,” said Chen, now a postdoctoral researcher at the Lawrence Berkeley National Lab. “Stopping deforestation and ecologically sensible large-scale tree-planting could be one simple, but not sufficient, defense against climate change.”​

​

The study authors noted, however, that the cooling effect from extra vegetation is large from an energy dissipation perspective, but it is Small compared to the Pace and Intensity of Global Warming.​

​

​

NASA Earth Observatory images by Joshua Stevens, using data from Chen, C., et al. (2020). Story by Michael Carlowicz, with Kassie Perlongo, NASA Ames Research Center.​

Greening Landscape Changes Air Flow

Global warming would be worse were it not for extra vegetation that changes how and where heat builds up across the landscape.

earthobservatory.nasa.gov

`

`

 

[Foreigner Looking In.]

Israel used to dump all their shit and sewage into the Mediterraneanm until some bright spark said, "Why don't we pipe it into the desert. So they did, and 50 years later, that desert became a rich, fertile woodland full of birds and insects.
When I heard this, I suggested that Europe do the same and pipe all the shit and urine to the Sahara desert in North Africa..
The first person I mentioned this to called me a racist for even thinking that.
The Left will destroy the planet before any Nazi..

 

[AZrailwhale]

That's the thing liberals and other short-sighted people miss about climate change. For every area that it hurts, there are areas that it helps. Nature is a dynamic system, not a static one.

 

[ChemEngineer]

That's the thing liberals and other short-sighted people miss about climate change. For every area that it hurts, there are areas that it helps. Nature is a dynamic system, not a static one.

There you go again, making liberals cry by telling the truth. Come on man, keep up the good work. Teach them in spite of themselves.

 

[Papageorgio]

The wonders of climate change, and yet the left has yet to figure it out.

 

[ChemEngineer]

The wonders of climate change, and yet the left has yet to figure it out.

They don't WANT anything to get better.

 

[justoffal]

NASA Vegetation Index:
Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km!​

NASA Vegetation Index: Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km! – Watts Up With That?
25 Feb 2021 ~~ By P. Gosselin

Looking at NASA’s Vegetation Index data, the news is good: the globe has greened 10% so far this century.
That’s good news because we know this ultimately means greater crop production area and forest expansion. Ironically, what many “experts claim to be a huge problem (CO2) is in fact one of the major reasons behind the greening.
Zoe Phin has a post on this topic at her site which really warrants attention.
Global Vegetation Index surges 10% in 20 years
Zoe downloaded all of NASA’s available 16-day-increment vegetation data from 2000 to 2021. Here’s her result:
NASA’s Vegetation Index has risen from 0.0936 to 0.1029, which is a 9.94% increase. Chart by Zoe Phin
“10% global greening in 20 years! We are incredibly fortunate!” Zoe comments on the results. “I just wish everyone felt that way. But you know not everyone does. To the extent that humans enhance global greening is precisely what social parasites want to tax and regulate. No good deed goes unpunished.”
Been greening 30 years!
This is not unexpected news to cool-headed climate realists. In August, 2019, we reported on a German study showing how the globe had been greening for 3 decades. Based on satellite imagery, German Wissenschaft reported, “Vegetation on earth has been expanding for decades, satellite data show.”
Sahara shrinking, becoming greener
Also not long ago a study by Venter et al (2018) found the Sahara desert had shrunk by 8% over the previous three decades. This is profound because the Sahara covers a vast area of some 9.2 million square kilometers. Eight percent means more than 700,000 square kilometers more area that’s become green – an area almost as big as Germany and France combined.
So in terms of vegetation, the planet probably hasn’t had it this nice in about 1000 years.
~Snip~
70% driven by CO2
And there’s more good news if you think CO2 is a problem as a greenhouse gas (it isn’t).
Last August, NTZ weekly contributor Kenneth Richard cited a study by Haverd et al, 2020), and wrote that “about 70% of the Earth’s post-1980s vegetative greening trend has been driven by CO2 fertilization” and that this greening will offset 17 years (equivalent) of the Earth’s anthropogenic CO2 emissions by 2100.


Comment:
Henny Penny -- OMG we’re losing the desert?!!!
The desert must be protected at all costs! Everyone, please start some tire fires, open your windows with the AC on. Just panic already!
Quick... China Joey Xi and his "Climate Change Appointees" John Kerry and Gina McCarthy are truly worried....
Undoubtedly, “if the Progressive Marxist/DSA Democrat government were to take over the Sahara Desert, there would be a shortage of sand in five years.”
Food security will be always factor because as long as global population increases, so must global agricultural production increase. That said (the need for agricultural output to keep pace with population), by far the biggest threat to humanity is NOT climate change.
Even though the air is cleaner in the UK, the EU, the US and Canada Climate Change moonbats want to tax our asses off and tie us to unsustainable wind and solar while heavy duty polluters, China, India, Africa, South and Central America keep their lights on using coal, natural gas and old tires. It’s hilarious
The biggest threat to humanity and resulting environmental destruction that a global famine would bring is Climate Change policy — the UN’s Socialist-Marxist climate policy to destroy access to affordable, abundant fossil fuels necessary to sustain global agricultural output.

I've been saying for the past 20 years that not all effects of global warming are negative.

 

[justoffal]

They don't WANT anything to get better.

You are correct because better conditions make it less likely that they will be able to take total control of the population. This is why they are sad to see COVID going away.... They don't ever want it to go away.

Jo

 

[Crick]

You are correct because better conditions make it less likely that they will be able to take total control of the population. This is why they are sad to see COVID going away.... They don't ever want it to go away.

Jo

Pray tell, how would everyone driving EV cars vice ICE cars and everyone getting their electricity from alternative sources rather than coal or gas fired power plants give ANYONE more or less control over the population?

 

[westwall]

Pray tell, how would everyone driving EV cars vice ICE cars and everyone getting their electricity from alternative sources rather than coal or gas fired power plants give ANYONE more or less control over the population?

Ummmm, requiring people to buy alternative power sources, that DON'T WORK, is controlling the population you moron.

 

[Crick]

Alternative sources are already providing a significant and growing portion of our energy needs and I've yet to suffer any shortfall. Have you? You weren't in Texas during that last cold snap were you? But, hey, if it makes you happy, feel free to move to the woods and live by your campfire..

 

[westwall]

Alternative sources are already providing a significant and growing portion of our energy needs and I've yet to suffer any shortfall. Have you? You weren't in Texas during that last cold snap were you? But, hey, if it makes you happy, feel free to move to the woods and live by your campfire..

No, they aren't. If they didn't have fossil fuel back up you would be sitting in the dark.

 

[ChemEngineer]

Ummmm, requiring people to buy alternative power sources, that DON'T WORK, is controlling the population you moron (Crook).

You are wasting time and energy, my Friend.
Cast not pearls before swine.
Go from the presence of a foolish man.

 

[CrusaderFrank]

NASA Vegetation Index: Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km!

Global Warming to blame!

Women and Children hit hardest!

China held blameless!

 

[Crick]

No, they aren't. If they didn't have fossil fuel back up you would be sitting in the dark.

Like virtually every word you have ever posted here, that is incorrect.

 

[ChemEngineer]

Worth a revisit. This NASA Vegetation Index article has not been featured in over two years!
It's as current as the catastrophic state of America under Biden's Crime Syndicate.
I just added it to my website.

Climate Change Cult

climate-change-cult.blogspot.com

 

[mamooth]

Worth a revisit.

It was just as loopy back then. The world stopped greening from CO2 in the 1990s.

No, NASA didn't say the world was still greening. A pack of denier liars claimed NASA said that. Normal people understand the difference.

So, is there any fascist propaganda you don't fall for?

Don't bother answering. That was a rhetorical question. There isn't. Just remember, you can't gaslight anyone who isn't part of your fascist imbecile cult. Though you'll still try, being how devoted to the Lord of Lies you are.

Earth Stopped Getting Greener 20 Years Ago

Declining plant growth is linked to decreasing air moisture tied to global warming

www.scientificamerican.com

 

[ding]

It was just as loopy back then. The world stopped greening from CO2 in the 1990s.

No, NASA didn't say the world was still greening. A pack of denier liars claimed NASA said that. Normal people understand the difference.

So, is there any fascist propaganda you don't fall for?

Don't bother answering. That was a rhetorical question. There isn't. Just remember, you can't gaslight anyone who isn't part of your fascist imbecile cult. Though you'll still try, being how devoted to the Lord of Lies you are.

Earth Stopped Getting Greener 20 Years Ago

Declining plant growth is linked to decreasing air moisture tied to global warming

www.scientificamerican.com

 

[surada]

NASA Vegetation Index:
Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km!​

NASA Vegetation Index: Globe Continues Rapid Greening Trend, Sahara Alone Shrinks 700,000 Sq Km! – Watts Up With That?
25 Feb 2021 ~~ By P. Gosselin

Looking at NASA’s Vegetation Index data, the news is good: the globe has greened 10% so far this century.
That’s good news because we know this ultimately means greater crop production area and forest expansion. Ironically, what many “experts claim to be a huge problem (CO2) is in fact one of the major reasons behind the greening.
Zoe Phin has a post on this topic at her site which really warrants attention.
Global Vegetation Index surges 10% in 20 years
Zoe downloaded all of NASA’s available 16-day-increment vegetation data from 2000 to 2021. Here’s her result:
NASA’s Vegetation Index has risen from 0.0936 to 0.1029, which is a 9.94% increase. Chart by Zoe Phin
“10% global greening in 20 years! We are incredibly fortunate!” Zoe comments on the results. “I just wish everyone felt that way. But you know not everyone does. To the extent that humans enhance global greening is precisely what social parasites want to tax and regulate. No good deed goes unpunished.”
Been greening 30 years!
This is not unexpected news to cool-headed climate realists. In August, 2019, we reported on a German study showing how the globe had been greening for 3 decades. Based on satellite imagery, German Wissenschaft reported, “Vegetation on earth has been expanding for decades, satellite data show.”
Sahara shrinking, becoming greener
Also not long ago a study by Venter et al (2018) found the Sahara desert had shrunk by 8% over the previous three decades. This is profound because the Sahara covers a vast area of some 9.2 million square kilometers. Eight percent means more than 700,000 square kilometers more area that’s become green – an area almost as big as Germany and France combined.
So in terms of vegetation, the planet probably hasn’t had it this nice in about 1000 years.
~Snip~
70% driven by CO2
And there’s more good news if you think CO2 is a problem as a greenhouse gas (it isn’t).
Last August, NTZ weekly contributor Kenneth Richard cited a study by Haverd et al, 2020), and wrote that “about 70% of the Earth’s post-1980s vegetative greening trend has been driven by CO2 fertilization” and that this greening will offset 17 years (equivalent) of the Earth’s anthropogenic CO2 emissions by 2100.


Comment:
Henny Penny -- OMG we’re losing the desert?!!!
The desert must be protected at all costs! Everyone, please start some tire fires, open your windows with the AC on. Just panic already!
Quick... China Joey Xi and his "Climate Change Appointees" John Kerry and Gina McCarthy are truly worried....
Undoubtedly, “if the Progressive Marxist/DSA Democrat government were to take over the Sahara Desert, there would be a shortage of sand in five years.”
Food security will be always factor because as long as global population increases, so must global agricultural production increase. That said (the need for agricultural output to keep pace with population), by far the biggest threat to humanity is NOT climate change.
Even though the air is cleaner in the UK, the EU, the US and Canada Climate Change moonbats want to tax our asses off and tie us to unsustainable wind and solar while heavy duty polluters, China, India, Africa, South and Central America keep their lights on using coal, natural gas and old tires. It’s hilarious
The biggest threat to humanity and resulting environmental destruction that a global famine would bring is Climate Change policy — the UN’s Socialist-Marxist climate policy to destroy access to affordable, abundant fossil fuels necessary to sustain global agricultural output.

Henny Penny? You were doing fine until you posted that tripe.