Climate change in Asia

[Erik Nelson]

Actual experts disagree.

Climate Change Research | US EPA

With you, yes

Basics of Climate Change | US EPA

 

[Erik Nelson]

Methane is a more potent greenhouse gas, but it also dissipates in 12-20 years, whereas CO2 stays in the atmosphere 300 to 1000 years. So you cannot blame 19th or 20th century agriculture for any methane in the atmosphere today.

Nobody is doing that

Methane, hundreds even thousands of years ago, warmed the Climate, hundreds even thousands of years ago

Which is why the earth didn't "tip" back into an Ice Age 5000 years ago as it "should" have

(Ancient Agriculture already overcame one Climatic "tipping point" 5000 years ago, which is why claiming modern Industry could overcome another seems plausible

 

[LeafByNiggle]

Methane, hundreds even thousands of years ago, warmed the Climate, hundreds even thousands of years ago

Which is why the earth didn't "tip" back into an Ice Age 5000 years ago as it "should" have

(Ancient Agriculture already overcame one Climatic "tipping point" 5000 years ago, which is why claiming modern Industry could overcome another seems plausible

There is zero evidence that the climate would have tipped into an ice age without the miniscule amount of methane produced by agriculture 5000 years ago. Estimates for the world population 3000 years ago range from 14 million to 45 million. Compare that to the population around 1900, at the start of the industrial age, which was about 1600 million, which increased to around 4000 million 75 years later. There is no way human activity, 5000 years ago, could have produced an effect on the climate comparable to what over 50 times as many people are doing in the industrial age. Also, there is no solid evidence that an ice age was "due" in any sense. The patterns of ice ages from the past are not regular enough to permit any kind of forecasting based solely on historical patterns repeating. They just don't repeat regularly enough.

 

[Erik Nelson]

There is no way human activity, 5000 years ago, could have produced an effect on the climate comparable to what over 50 times as many people are doing in the industrial age. Also, there is no solid evidence that an ice age was "due" in any sense. The patterns of ice ages from the past are not regular enough to permit any kind of forecasting based solely on historical patterns repeating. They just don't repeat regularly enough.

A small impact, for a long time, adds up to a large impact, for a short time

Thousands of years of ancient Agriculture accumulated the same level of impact as a couple centuries of Industry

(also, much of the slashing & burning, clear cutting, & deforestation occurred way back then -- after that, farm fields remained farm fields

The Climate "tried" to "tip" back into an Ice Age 5000 years ago during the Piora Oscillation, very tough times throughout the Middle East as a result

Plenty of evidence, published in peer reviewed journals

Most slashing, burning, clear-cutting, & deforestation occurred in pre-Industrial times (even some re-forestation in modern times

 

[LeafByNiggle]

A small impact, for a long time, adds up to a large impact, for a short time

Thousands of years of ancient Agriculture accumulated the same level of impact as a couple centuries of Industry

(also, much of the slashing & burning, clear cutting, & deforestation occurred way back then -- after that, farm fields remained farm fields

That is certainly not true. Farm fields did not remain farm fields 5000 years ago. Civilizations rose and fell. Some farmland was abandoned and in a few hundred years, trees regrew. In areas that remained farmland, the carbon lost was already participating the carbon cycle. Trees died and rotted. Their carbon returned to the atmosphere. Land used for agriculture does essentially the same thing. Carbon cycles through the crops and eventually returns. The total amount of carbon in circulation remained the same, even when trees were cut down. It was all part of the continuing carbon cycle. Until the age of industrialization. That is when carbon that was taken out of circulation millennia earlier suddenly was added to the carbon budget. This is evidenced in the sudden rise in CO2 levels that had remained relatively constant throughout the age of man as shown by ice core samples. There was not "accumulating effect" of human activity from before the industrial age.

The Climate "tried" to "tip" back into an Ice Age 5000 years ago during the Piora Oscillation, very tough times throughout the Middle East as a result

There are various "climate cycles" that have been identified and causes speculated. But they have not repeated enough to be sure they were not just random events. This is very different from the 11-year sunspot cycle, for instance, that has repeated so many times that it is almost certain not to be random coincidence. And most importantly, after the sunspot cycle was discovered, the cycle continued, thus adding support to the view that it is a real cycle being caused by something. But looking at prehistoric climate cycles and speculating on their inevitability in the absence of humanity is not scientific. It is pure speculation.

 

[Erik Nelson]

Earth is warming at ~0.7 Watts per square meter.

Sunlight is 2000x more intense (~1400 Watts per square meter).

Reflecting away one out of every 2000 photons from the Sun would offset Global Warming.

60 out of every 2000 parts of earth's surface are already Urbanized (3% of earth's surface). That will more than double by 2100 (6% of earth's surface).

If planes, trains, automobiles, semi-trucks, containers, cargo ships, port facilities, and cities were painted WHITE, earth would start cooling.

 

[Gene2memE]

According to climate science, without all of those cumulative worldwide emissions, from all sources, earth would have already plunged back into another Ice Age. Thousands of years of chopping down trees for farm fields & hundreds of years of burning fossil fuels for power has (fed billions of people and also) staved off the next Ice Age.

Which climate science? Got a paper, study or organisation bearing this claim out?

 

[essentialsaltes]

Yangtze shrinks as China's drought disrupts industry

Factories in Sichuan province and the adjacent metropolis of Chongqing in the southwest were ordered to shut down after reservoirs that supply hydropower fell to half their normal levels and demand for air conditioning surged in scorching temperatures. [Temps reached 45C/113F in the city.]

 

[essentialsaltes]

Lowered Yangtze River waters reveal Buddhist statues believed to be 600 years old

 

[Paulos23]

In Eurpoe, so called hunger stones are being revealed from drying rivers.

Chilling warning messages unearthed as Europe's drought worsens