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<font size="+2" face="Calibri"><i><b>March</b></i></font><font
size="+2" face="Calibri"><i><b> 4, 2024</b></i></font><font
face="Calibri"><br>
</font> <br>
<i>[ Yes, it was. Antarctica ice sheets explained - video PBS ]</i><br>
<b>Was This Really a 1 in 700,000,000,000 Year Event?! - Antarctic
sea ice melting fast</b><br>
PBS Terra<br>
Feb 27, 2024<br>
For decades, Antarctic sea ice trends seemed to defy climate change,
until…they didn’t. In just two years, Antarctica lost as much sea
ice as the Arctic lost in three decades. Statistics say that the
record low sea ice in 2023 was a 1 in 700 BILLION year event,
suggesting that the models in this case may be broken, or that this
anomaly was caused by climate change. And a new study asked the
question: does this represent a STATE CHANGE? And what would that
mean for one of our most iconic species, the emperor penguin? And
what does reduced sea ice mean for Thwaites, the Doomsday Glacier?
With summer sea ice hitting the third-lowest extent in recorded
history, it's time to check-in. Watch this episode to find out.<br>
<a class="moz-txt-link-freetext" href="https://www.youtube.com/watch?v=eGkJSEOd1R4">https://www.youtube.com/watch?v=eGkJSEOd1R4</a><br>
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</p>
<br>
<i>[ Invisible methane is one of the worst - most of it comes from
fossil fuel industries ]</i><br>
<b>Tracking an Invisible Climate Menace From 360 Miles Above</b><br>
By Malika Khurana and Hiroko Tabuchi March 3, 2024<br>
- -<br>
Methane, a colorless and odorless gas, is the main ingredient in
natural gas, which is burned in power plants and factories around
the world, as well as in homes (think: gas stoves). Gas is far
cleaner to burn than coal, but it has a big problem: It’s
notoriously leaky. It seeps from oil and gas drill sites. It escapes
from pipelines that carry the gas where it needs to go. And some
operators simply release it into the air instead of investing in the
infrastructure to capture all of it.<br>
<br>
And that’s speeding up climate change.<br>
<br>
When methane escapes into the atmosphere, it acts as a heavy blanket
in the sky, trapping the sun’s heat and warming the world. And in
its first 20 years in the atmosphere, methane captures more than 80
times as much heat as does carbon dioxide, the main greenhouse gas.
(Luckily, methane doesn’t stay in the atmosphere for as long as
carbon dioxide.)<br>
<br>
Scientists estimate that human-caused methane emissions are
responsible for up to 30 percent of the global warming being
experienced today.<br>
<br>
Figuring out where methane emissions are happening, how big they are
and who’s responsible has been a challenge. A lot of drill sites are
unmanned. Some companies don’t invest enough in leak-detection
technology. Or they don’t welcome inspectors taking measurements.<br>
<br>
Enter MethaneSAT....<br>
- -<br>
The good news is that leaks of methane from oil and gas
infrastructure should be relatively inexpensive to fix. And in
theory, capturing that methane instead of letting it escape could
pay for itself by allowing companies to sell more gas. Some
companies have already started using other satellite data to better
track their methane releases.<br>
<br>
"We welcome the development, because we share the same aim as
E.D.F.," said Bjorn Otto Sverdrup, chair of the Oil and Gas Climate
Initiative, a group of twelve of the world’s biggest oil and gas
companies that has pledged to reduce methane emissions. "I'd like to
wish them the best of luck."<br>
<br>
More challenging is tackling emissions from landfills or from
agriculture, specifically livestock, though some scientists are
trying to do that by tweaking cows’ diets. Methane also seeps from
natural sources, like flooded wetlands, but the majority of methane
emissions today come from human activity.<br>
<br>
A concerted effort to rein in methane from fossil fuels, agriculture
and landfills could reduce methane emissions by up to 57 percent by
2030, helping to slow the rate of warming by as much as 30 percent,
scientists have estimated. One of MethaneSAT’s main goals is to help
bring about that change.<br>
<br>
“Our only measure of success is: Do the emissions go down? That's
our North Star,” Dr, Hamburg said.<br>
<a class="moz-txt-link-freetext" href="https://www.nytimes.com/interactive/2024/03/03/climate/methane-satellite-launch-global-warming.html?unlocked_article_code=1.aE0._WJY.zYqDCUlH-i1F&smid=url-share">https://www.nytimes.com/interactive/2024/03/03/climate/methane-satellite-launch-global-warming.html?unlocked_article_code=1.aE0._WJY.zYqDCUlH-i1F&smid=url-share</a><br>
<a class="moz-txt-link-freetext" href="https://www.nytimes.com/interactive/2024/03/03/climate/methane-satellite-launch-global-warming.html">https://www.nytimes.com/interactive/2024/03/03/climate/methane-satellite-launch-global-warming.html</a><br>
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</p>
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</p>
<i>[ European Geosciences Union - tipping points is not a place in
China ]</i><br>
<b>Tipping points in the Anthropocene</b><br>
The aim of the special issue (and associated "Tipping Points Status
Report") is to produce a ground-breaking state-of-knowledge
synthesis of tipping point research. We see an important niche for a
special issue on the state of both "bad" and "good" tipping points
in relation to climate change. The physical science element would
update the status of climate and Earth system tipping points. The
impacts and adaptation element would update tipping points across
climate–ecological–social systems and their cascading interactions.
The mitigation element would update the positive tipping points of
transformative social–technological–ecological change.<br>
<a class="moz-txt-link-freetext" href="https://esd.copernicus.org/articles/special_issue1247.html">https://esd.copernicus.org/articles/special_issue1247.html</a><br>
<p>- -</p>
<i>[ Narrative Summary of the longer report - look for PDF file
78mb ]</i><br>
<b>Global Tipping Points</b><br>
Global Tipping Points is led by Professor Tim Lenton from the
University of Exeter’s Global Systems Institute with the support of
more than 200 researchers from over 90 organisations in 26
countries.<br>
<br>
The Global Tipping Points Report was launched at COP28 on 6 December
2023. The report is an authoritative assessment of the risks and
opportunities of both negative and positive tipping points in the
Earth system and society...
<blockquote><b>Narrative Summary</b><br>
Harmful tipping points in the natural world pose some of the
gravest threats faced by humanity. Their triggering will severely
damage our planet’s life-support systems and threaten the
stability of our societies.<br>
For example, the collapse of the Atlantic Ocean’s great
overturning circulation combined with global warming could cause
half of the global area for growing wheat and maize to be lost.
Five major tipping points are already at risk of being crossed due
to warming right now and three more are threatened in the 2030s as
the world exceeds 1.5°C global warming.<br>
<br>
The full damage caused by negative tipping points will be far
greater than their initial impact. The effects will cascade
through globalised social and economic systems, and could exceed
the ability of some countries to adapt. Negative tipping points
show that the threat posed by the climate and ecological crisis is
far more severe than is commonly understood and is of a magnitude
never before faced by humanity.<br>
<br>
Currently, there is no adequate global governance at the scale of
the threats posed by negative tipping points. The world is on a
disastrous trajectory. Crossing one harmful tipping point could
trigger others, causing a domino effect of accelerating and
unmanageable change to our life-support systems. Preventing this –
and doing so equitably – should become the core goal and logic of
a new global governance framework. Prevention is only possible if
societies and economic systems are transformed to rapidly reduce
emissions and restore nature.<br>
<br>
The current approach of linear incremental change favoured by many
decision makers is no longer an option. Existing governance
institutions and decision-making approaches need to adapt to
facilitate transformational change.<br>
<br>
Crucial to achieving this transformational change are positive
tipping point opportunities, where desirable changes in society
become self-propelling. Concerted actions can create the enabling
conditions for triggering rapid and large-scale transformation.
Human history is flush with examples of abrupt social and
technological change. Recent examples include the exponential
increases in renewable electricity, the global reach of
environmental justice movements, and the accelerating rollout of
electric vehicles. Negative tipping point threats could be
mitigated if there was a vast effort to trigger other positive
tipping point opportunities<br>
Unfortunately, in the time lag during which appropriate governance
and action might be realised, negative tipping points could still
be triggered. This means that societies must urgently be made more
resilient to minimise the vast and unequal harms. Critically, more
resilient societies are also needed to ensure that collective
focus on triggering positive tipping point opportunities can be
sustained even through a negative tipping event. This resiliency
can be achieved with ‘no regrets’ actions that anyway make
societies more sustainable, equitable and prosperous.<br>
<br>
The existence of tipping points means that ‘business as usual’ is
now over. Rapid changes to nature and society are occurring, and
more are coming. If we don’t revise our governance approach, these
changes could overwhelm societies as the natural world rapidly
comes apart. Alternatively, with emergency global action and
appropriate governance, collective interventions could harness the
power of positive tipping point opportunities, helping navigate
toward a thriving sustainable future.<br>
</blockquote>
<a class="moz-txt-link-freetext" href="https://global-tipping-points.org/">https://global-tipping-points.org/</a><br>
<p>- -</p>
<i>[ What can we do? Plenty, here's a brief summary ]</i><br>
<b>Key recommendations</b><br>
<b>1 PHASE OUT FOSSIL FUELS AND LAND USE EMISSIONS NOW</b><br>
The scale of threat posed by Earth system tipping points underlines
the critical importance of the 1.5 ̊C temperature goal and means
that global mitigation should now assume an emergency footing.
Fossil fuel emissions should be phased out worldwide before 2050. A
rapid end to land use change emissions and shift to worldwide
ecological restoration are also needed. Countries should reassess
their highest possible ambitions accordingly, particularly wealthy,
high-emitting nations.<br>
<b><br>
2 STRENGTHEN ADAPTATION AND LOSS-AND-DAMAGE GOVERNANCE</b><br>
Some Earth system tipping points are now likely to be triggered,
causing severe and spatially uneven impacts on societies and
interconnected ecological, social and economic systems. Tipping
point impacts will be felt worst by the most vulnerable communities
within and between nations, with knock-on impacts for global
inequality, the stability of the world economy, and geopolitics.
This provides an urgent impetus to strengthen adaptation and
loss-and -damage governance in the UNFCCC, adjusting existing
frameworks and increasing resources to account for tipping point
threats.<br>
<b><br>
3 INCLUDE TIPPING POINTS IN NDCS AND THE GLOBAL STOCKTAKE</b><br>
Considerations of Earth system tipping point risks, corresponding
action, and positive tipping point opportunities should be included
in the Global Stocktake (GST), future revisions of Nationally
Determined Contributions (NDCs), and in associated national and
sub-national policy measures. Future GSTs should assess collective
progress towards preventing Earth system tipping points, addressing
potential impacts and fostering positive tipping points. All future
NDCs should include national-scale systemic assessments of exposure
to tipping point risks, measures that contribute to the prevention
of tipping points, plans for managing potential impacts and
strategies for fostering positive tipping points<br>
<br>
<b>4 COORDINATE POLICY EFFORTS TO TRIGGER POSITIVE TIPPING POINTS</b><br>
Coordinated action by coalitions of state and non-state actors
across governance, business and civil society can bring forward
positive tipping points in politics, economies, technology, culture,
and behaviour. A focus on ‘super-leverage points’ – for example
policy mandates in high-emitting sectors such as power, road
transport, green hydrogen/ ammonia and food – could create a cascade
of positive changes.<br>
<br>
<b>5 CONVENE A GLOBAL SUMMIT ON TIPPING POINTS</b><br>
The UN Secretary General should convene a global summit on the
governance agenda for managing Earth system tipping point risks and
maximising coordination on triggering positive tipping point
opportunities to speed up mitigation and resilience. It should
provide a forum for government, industry and civil society. As a
matter of urgency, tipping point threats should also feature on the
agenda of key international fora, including the 2024 meeting of the
G20 in Brazil.<br>
<b><br>
6 DEEPEN KNOWLEDGE OF TIPPING POINTS AND ITS TRANSLATION INTO
ACTION</b><br>
The above efforts should be supported by investment in improved
scientific knowledge and monitoring<br>
of negative and positive tipping points, and a much improved
science-policy engagement process to more effectively and rapidly
convert knowledge into action. To help stimulate this process, we
support calls for an IPCC Special Report on Tipping Points in the
current assessment cycle.<br>
<a class="moz-txt-link-freetext" href="https://global-tipping-points.org/summary-report/key-recommendations/">https://global-tipping-points.org/summary-report/key-recommendations/</a><br>
<p><br>
</p>
<br>
<i>[ In case you forget real snow, this is the heavy stuff today in
Calif ]</i><br>
<b>3-3-2024 Truckee to Soda Springs, CA Huge snow totals piling
up.mp4</b><br>
Live Storms Media<br>
Mar 3, 2024<br>
***NOT FOR BROADCAST***<br>
Contact Brett Adair with Live Storms Media to license.<br>
<a class="moz-txt-link-abbreviated" href="mailto:brett@livestormsmedia.com">brett@livestormsmedia.com</a><br>
<br>
Massive snow storm has buried areas in the Sierra. Semis buried in
Truckee.<br>
And getting pulled out. Scenes along closed I-80. Plows. Drone.<br>
<a class="moz-txt-link-freetext" href="https://www.youtube.com/watch?v=--fHQ9upxVk">https://www.youtube.com/watch?v=--fHQ9upxVk</a>
<p><br>
</p>
<p><br>
</p>
<font face="Calibri"><i>[The news archive - ]</i><br>
</font><font face="Calibri"> <font size="+2"><i><b>March 4, 2001 </b></i></font>
</font><br>
<font face="Calibri"> </font> March 4, 2001: At an international
climate summit in Italy, EPA Administrator Christine Todd Whitman
insists that the Bush administration will take aggressive action to
reduce carbon pollution. (By the end of the month, the Bush
administration would officially disavow the Kyoto Protocol.)<br>
<a class="moz-txt-link-freetext" href="http://edition.cnn.com/2001/WORLD/europe/italy/03/04/environment.climate/">http://edition.cnn.com/2001/WORLD/europe/italy/03/04/environment.climate/</a><br>
<br>
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