Climate strikes spread worldwide as students call for action

[longview]

You really don't have the faintest idea, do you? Hansen's ghost forcing doesn't actually exist - that's why he named it a ghost forcing (the clue is in the name!). It's an imaginary forcing applied to climate models to determine their sensitivity, not some proposed additional forcing!

See post #224

 

[Lord of Planar]

Wrong... as usual.

From chapter 1 of the IPCC report:



And in that section several lines of evidence are presented:



Then... all one has to do is pick one of those lines of evidence and they can read about it complete with references to the peer-reviewed literature on the subject. I would check out chapter 2 section 3 if I was longview because it has both the empirical evidence he will insist upon as well information that he would find informative. This graphic might help him see that insisting that TOA radiation measurements would be the same as surface measurements is just wrong.

View attachment 67256926

That's what they do. They fully explore the possibility of the evidence that supports a warming agenda, why ignoring factors than can show mitigation of the warming, and even variables that cool.

 

[Lord of Planar]

It was what Hansen used to describe the response to the predicted feedbacks,
It is a real shame they have not been observed in the data.
https://pubs.giss.nasa.gov/docs/1997/1997_Hansen_ha01900k.pdf
View attachment 67256938

I suspect even Hansen, as smart as he is on his, missed the simply changes caused by land use and aerosols. These changes in evaporation cooling and insolation are dramatic. I suspect he may have not even accounted for the opacity of sea water to longwave, and transparency to shortwave.

If he had, I'm sure his conclusions would have been different.,

 

[longview]

I suspect even Hansen, as smart as he is on his, missed the simply changes caused by land use and aerosols. These changes in evaporation cooling and insolation are dramatic. I suspect he may have not even accounted for the opacity of sea water to longwave, and transparency to shortwave.

If he had, I'm sure his conclusions would have been different.,

I am not sure, I think Hansen may be a true zealot, who had the conclusion in mind,
and then set about to prove it.

 

[Lord of Planar]

I am not sure, I think Hansen may be a true zealot, who had the conclusion in mind,
and then set about to prove it.

Maybe, but his scientific work is stellar compared to others. He was ahead of his time in the 80's at least.

 

[Media_Truth]

View attachment 67256926

If they'd read the details, they wouldn't have all those questions. If they were Climate Scientists, they might understand the details.

The estimate for the reflected solar radiation at the TOA in Figure 2.11,
100 W m–2, is a rounded value based on the CERES Energy Balanced
and Filled (EBAF) satellite data product (Loeb et al., 2009, 2012b) for
the period 2001–2010. This data set adjusts the solar and thermal TOA
fluxes within their range of uncertainty to be consistent with independent estimates of the global heating rate based on in situ ocean
observations (Loeb et al., 2012b). This leaves 240 W m–2 of solar radiation absorbed by the Earth, which is nearly balanced by thermal emission to space of about 239 W m–2 (based on CERES EBAF), considering
a global heat storage of 0.6 W m–2 (imbalance term in Figure 2.11)
based on Argo data from 2005 to 2010 (Hansen et al., 2011; Loeb et
al., 2012b; Box 3.1). The stated uncertainty in the solar reflected TOA
fluxes from CERES due to uncertainty in absolute calibration alone is
about 2% (2-sigma), or equivalently 2 W m–2 (Loeb et al., 2009). The
uncertainty of the outgoing thermal flux at the TOA as measured by
CERES due to calibration is ~3.7 W m–2 (2σ). In addition to this, there is
uncertainty in removing the influence of instrument spectral response
on measured radiance, in radiance-to-flux conversion, and in time–
space averaging, which adds up to another 1 W m–2 (Loeb et al., 2009).
The components of the radiation budget at the surface are generally
more uncertain than their counterparts at the TOA because they cannot
be directly measured by passive satellite sensors and surface measurements are not always regionally or globally representative. Since AR4,
new estimates for the downward thermal infrared (IR) radiation atthe surface have been established that incorporate critical information
on cloud base heights from space-borne radar and lidar instruments
(L’Ecuyer et al., 2008; Stephens et al., 2012a; Kato et al., 2013). In line
with studies based on direct surface radiation measurements (Wild et
al., 1998, 2013) these studies propose higher values of global mean
downward thermal radiation than presented in previous IPCC assessments and typically found in climate models, exceeding 340 W m–2
(Figure 2.11). This aligns with the downward thermal radiation in the
ERA-Interim and ERA-40 reanalyses (Box 2.3), of 341 and 344 W m–2,
respectively (Berrisford et al., 2011). Estimates of global mean downward thermal radiation computed as a residual of the other terms of
the surface energy budget (Kiehl and Trenberth, 1997; Trenberth et al.,
2009) are lower (324 to 333 W m–2), highlighting remaining uncertainties in estimates of both radiative and non-radiative components of the
surface energy budget.
Estimates of absorbed solar radiation at the Earth’s surface include
considerable uncertainty. Published global mean values inferred from
satellite retrievals, reanalyses and climate models range from below
160 W m–2 to above 170 W m–2. Recent studies taking into account
surface observations as well as updated spectroscopic parameters
and continuum absorption for water vapor favour values towards
the lower bound of this range, near 160 W m–2, and an atmospheric
solar absorption around 80 W m–2 (Figure 2.11) (Kim and Ramanathan,
2008; Trenberth et al., 2009; Kim and Ramanathan, 2012; Trenberth
and Fasullo, 2012b; Wild et al., 2013). The ERA-Interim and ERA-40
reanalyses further support an atmospheric solar absorption of this
magnitude (Berrisford et al., 2011). Latest satellite-derived estimates
constrained by CERES now also come close to these values (Kato et
al., in press). Recent independently derived surface radiation estimates
favour therefore a global mean surface absorbed solar flux near 160
W m–2 and a downward thermal flux slightly above 340 W m–2, respectively (Figure 2.11).
The global mean latent heat flux is required to exceed 80 W m–2 to
close the surface energy balance in Figure 2.11, and comes close to the
85 W m–2 considered as upper limit by Trenberth and Fasullo (2012b)
in view of current uncertainties in precipitation retrieval in the Global
Precipitation Climatology Project (GPCP, Adler et al., 2012) (the latent
heat flux corresponds to the energy equivalent of evaporation, which
globally equals precipitation; thus its magnitude may be constrained
by global precipitation estimates). This upper limit has recently been
challenged by Stephens et al. (2012b). The emerging debate reflects
potential remaining deficiencies in the quantification of the radiative
and non-radiative energy balance components and associated uncertainty ranges, as well as in the consistent representation of the global
mean energy and water budgets. Relative uncertainty in the globally
averaged sensible heat flux estimate remains high owing to the very
limited direct observational constraints.

 

[Jack Hays]

[h=1]Thunberg Fun[/h]Posted on 22 May 19 by GEOFF CHAMBERS • 3 Comments
At last. The first sign that we might be at the beginning of the end, or the end of the beginning, or something. H/t Guido Fawkes. YouTube Watch the audience. Some are laughing, and some are trying hard not to. Continue

 

[Bergslagstroll]

Over 1300 climate strikes in over 110 countries on Friday.

Over 1,351 Climate Strikes in 110 Countries Planned for Friday as Global Revolt Escalates

There peole of all ages are joining the movement.

'Under the banner Parents for the Future, 34 groups from 16 countries on four continents have issued an open letter. It demands urgent action to fight climate change and prevent temperatures rising by more than 1.5C, beyond which scientists say droughts, floods and heatwaves will get significantly worse.

“What our kids are telling us is what science has been telling us for many years – there is no time left,” the letter says. “We now owe it to them to act.”

“Parents – we are everywhere in society: in classrooms as teachers, in fields as farmers, in factories as workers, in hospitals as healers, in boardrooms as CEOs, in legislatures as policymakers,” it says. “We have the power to build this safe, just and clean future for our kids.”'

Parents around the world mobilise behind youth climate strikes | Environment | The Guardian

 

[Lord of Planar]

Over 1300 climate strikes in over 110 countries on Friday.

Over 1,351 Climate Strikes in 110 Countries Planned for Friday as Global Revolt Escalates

There peole of all ages are joining the movement.

'Under the banner Parents for the Future, 34 groups from 16 countries on four continents have issued an open letter. It demands urgent action to fight climate change and prevent temperatures rising by more than 1.5C, beyond which scientists say droughts, floods and heatwaves will get significantly worse.

“What our kids are telling us is what science has been telling us for many years – there is no time left,” the letter says. “We now owe it to them to act.”

“Parents – we are everywhere in society: in classrooms as teachers, in fields as farmers, in factories as workers, in hospitals as healers, in boardrooms as CEOs, in legislatures as policymakers,” it says. “We have the power to build this safe, just and clean future for our kids.”'

Parents around the world mobilise behind youth climate strikes | Environment | The Guardian

The ignorance of the masses prevail.

 

[Bergslagstroll]

The ignorance of the masses prevail.

It is you who have failed to provide sources for your claims. While even federal agencies under Donald Trump acknowledge the urgent need for action.

"The impacts of climate change are already being felt in communities across the country. More frequent and intense extreme weather and climate-related events, as well as changes in average climate conditions, are expected to continue to damage infrastructure, ecosystems, and social systems that provide essential benefits to communities. Future climate change is expected to further disrupt many areas of life, exacerbating existing challenges to prosperity posed by aging and deteriorating infrastructure, stressed ecosystems, and economic inequality. Impacts within and across regions will not be distributed equally. People who are already vulnerable, including lower-income and other marginalized communities, have lower capacity to prepare for and cope with extreme weather and climate-related events and are expected to experience greater impacts. Prioritizing adaptation actions for the most vulnerable populations would contribute to a more equitable future within and across communities. Global action to significantly cut greenhouse gas emissions can substantially reduce climate-related risks and increase opportunities for these populations in the longer term."

Fourth National Climate Assessment

 

[Bergslagstroll]

Climate strikes in over one hundred countries yesterday.

"The school strike movement has emerged in tandem with other environmental movements worldwide. The British-based direct action group Extinction Rebellion occupied major locations in London for ten days in late April, and their first demand, for the British government to declare a state of “climate emergency,” received approval from parliament on May 1. And in the U.S., the young activists of Sunrise Movement have pushed to transform climate action into a political reality by calling for a Green New Deal, attracting the support of several legislators and 2020 Democratic presidential candidates.

While Thunberg is well-known worldwide, she says it is the strike organizers in each country that she looks up to. “Young people who are in developing countries are sacrificing their education in order to protest against the destruction of their future and world,” she told TIME. “They are the real heroes.” Photos and videos from strikers in the eastern hemisphere started flooding social media in the morning, ranging from Seoul, South Korea to Auckland, New Zealand, and later in the day images of crowds surfaced in European cities such as Berlin and Paris, where organizers say an estimated 23,000 turned out to demonstrate."

Students in Over 125 Countries Hold Global Climate Strikes | Time