Lightnews — Scholar-powered news

Paul Macdonald

@paulmac.bsky.social

1.5K followers 3.4K following 15K posts

Fighting for climate action, and challenging anti-science propaganda, disinformation, and misinformation.

Posts Media Videos Starter Packs

Pinned

Paul Macdonald @paulmac.bsky.social · Nov 15

A few years ago, prior to Australia’s ‘Black Summer’, I began capturing extreme events as I became aware of them escalating to a frequency of becoming annual events - some type of disaster of unprecedented scale occurring somewhere where such an event was previously unheard of. 🧵

16 110 320

Paul Macdonald @paulmac.bsky.social · 4h

For more details and videos of extreme climate and weather events, go to:
x.com/weathermonit...
x.com/volcaholic1
x.com/arab_storms
bsky.app/profile/fire...

#Precpitation
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 8h

x.com/volcaholic1/...

#Landslides
#Precipitation
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 9h

mainichi.jp/english/arti...

#Precipitation
#Storms
#AnthropogenicGlobalWarming

Tokyo's Izu islands see record rainfall as strong typhoon passes - The Mainichi

TOKYO (Kyodo) -- A special heavy rain warning was temporarily issued for the Izu island chain south of Tokyo on Thursday, as a strong typhoon passed n

mainichi.jp

1 4

Paul Macdonald @paulmac.bsky.social · 9h

mainichi.jp/english/arti...

#Storms
#Precipitation
#AnthropogenicGlobalWarming

Tokyo's Izu islands see record rainfall as strong typhoon passes - The Mainichi

TOKYO (Kyodo) -- A special heavy rain warning was temporarily issued for the Izu island chain south of Tokyo on Thursday, as a strong typhoon passed n

mainichi.jp

Paul Macdonald @paulmac.bsky.social · 9h

bsky.app/profile/extr...

#ExtremeHeat
#RecordHeat
#AnthropogenicGlobalWarming

Extreme Temperatures Around the World @extremetemps.bsky.social · 9h

44.2C today in Culiacan Int. Airport is also its

HOTTEST DAY IN HISTORY for any month

1 1

Paul Macdonald @paulmac.bsky.social · 9h

bsky.app/profile/extr...

#ExtremeHeat
#RecordHeat
#AnthropogenicGlobalWarming

Extreme Temperatures Around the World @extremetemps.bsky.social · 9h

HISTORIC HEAT IN MEXICO

Brutal heat today with 44.2C at Culiacan,
Hottest October day in history

(world hottest place today)

Since July, the North Pacific Mexico has been breaking record no-stop ,continuosly.

More records tomorrow

1 1 2

Paul Macdonald @paulmac.bsky.social · 9h

www.facebook.com/share/r/1CNc...

#Lightning
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 12h

The ocean surrounding New Zealand is warming approximately 34% more rapidly than the global average.

environment.govt.nz/publications...

Our Marine Environment 2025

environment.govt.nz

Paul Macdonald @paulmac.bsky.social · 12h

environment.govt.nz/assets/publi...

#OceanHeat
#Acidification
#Hypoxia
#DeadZones
#BiodiversityLoss
#Extinction
#ExtremeWeather
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 17h

esd.copernicus.org/articles/16/...

#Oscillations
#ENSO
#Currents
#AMOC
#OceanHeat
#TippingPoints
#AnthropogenicGlobalWarming

Tipping points in ocean and atmosphere circulations

Abstract. Continued anthropogenic pressures on the Earth system hold the potential to disrupt established circulation patterns in the ocean and atmosphere. In this narrative review, we investigate tip...

esd.copernicus.org

2 1

Paul Macdonald @paulmac.bsky.social · 18h

www.independent.co.uk/climate-chan...

#Food
#ExtremeWeather
#Precipitation
#Floods
#AnthropogenicGlobalWarming

England sees second worst harvest on record, analysis shows

Provisional Government data suggests a much worse harvest than experts had so far predicted.

www.independent.co.uk

1 1

Paul Macdonald @paulmac.bsky.social · 22h

thehill.com/opinion/ener...

#OceanHeat
#Acidification
#Hypoxia
#DeadZones
#BiodiversityLoss
#Extinction
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 22h

www.facebook.com/share/r/1DiR...

#Hail
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 23h

www.facebook.com/share/p/18ms...

#Hail
#AnthropogenicGlobalWarming

2 1

Paul Macdonald @paulmac.bsky.social · 1d

au.news.yahoo.com/beachgoers-w...

Paul Macdonald @paulmac.bsky.social · 1d

au.news.yahoo.com/beachgoers-w...

#OceanHeat
#Acidification
#Hypoxia
#DeadZones
#BiodiversityLoss
#Extinction
#AnthropogenicGlobalWarming

Beachgoers warned of major downside to drastic sea change: 'Too warm'

While the water may be invitingly warm, something devastating is occurring under the surface. Find out more.

au.news.yahoo.com

1 1

Paul Macdonald @paulmac.bsky.social · 2d

www.theguardian.com/world/2025/o...

#OceanHeat
#ExtremeWeather
#AnthropogenicGlobalWarming

New Zealand oceans warming 34% faster than global average, putting homes and industry at risk, report finds

NZ$180bn worth of housing and $26bn of infrastructure at risk of flooding and storm damage, new government report finds

www.theguardian.com

1 1

Paul Macdonald @paulmac.bsky.social · 2d

www.theguardian.com/world/2025/o...

#Food
#ExtremeWeather
#Precipitation
#Floods
#Drought
#AnthropogenicGlobalWarming

One year’s worth of bread lost in UK to wrecked harvests since 2020, report finds

Worsening droughts and floods have destroyed wheat for 4bn loaves of bread and forced record levels of imports

www.theguardian.com

1 2 2

Paul Macdonald @paulmac.bsky.social · 2d

bsky.app/profile/fire...

wearesolomon.com/mag/format/i...

#HumanDisplacement
#ExtremeWeather
#Precipitation
#Floods
#Fire
#AnthropogenicGlobalWarming

The Final Report @firehorse249791.bsky.social · 2d

[Greece] ‘Migrants in their own land’: climate displacement at Europe’s external borders wearesolomon.com/mag/format/i... #ClimateCrisis #FossilFuels #Flood #Migrants #Greece #Europe

‘Migrants in their own land’: climate displacement at Europe’s external borders

When record-breaking floods hit central Greece in 2023, entire villages were uprooted. Some of those left houseless remain in the refugee camp where they were relocated — a stark glimpse of Europe’s n...

wearesolomon.com

Paul Macdonald @paulmac.bsky.social · 2d

x.com/volcaholic1/...

#Hail
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 3d

www.9news.com.au/national/pot...

#Food
#ExtremeWeather
#WeatherWhiplash
#Precipitation
#PrecipitationWhiplash
#Hail
#Drought
#Fire
#CO2
#Nutrients
#AnthropogenicGlobalWarming

Aussies hit with nationwide potato shortage after 'toughest season' in a decade

Australians are being hit with a potato shortage, with growers having experienced what they say has been on...

www.9news.com.au

Paul Macdonald @paulmac.bsky.social · 3d

bsky.app/profile/aner...

#Heatwaves
#ExtremeHeat
#RecordCold
#WeatherWhiplash
#PolarVortex
#JetStream
#AnthropogenicGlobalWarming

Andrew Miskelly @anero.id · 3d

Recent south polar warmth (negative AAO → SAM; gradually easing) has pushed westerlies further north, and produced a wavier jet stream pattern with persistent mid-latitude cold and warm anomalies. Which longitudes are cold/warm is governed by planetary waves.

850 hPa zonal wind anomaly between 20 September and 5 October 2025 from NCEP/NCAR Reanalysis.

500 hPa geopotential height and anomaly between 20 September and 5 October 2025 from NCEP/NCAR Reanalysis.

Paul Macdonald @paulmac.bsky.social · 3d

www.theclimatebrink.com/p/most-of-th...

#ExtremeHeat
#RecordHeat
#AnthropogenicGlobalWarming

Most of the world has recently set all-time heat records

Regional exceptions like the 1930s in the continental US notwithstanding

www.theclimatebrink.com

1 2

Paul Macdonald @paulmac.bsky.social · 3d

x.com/arab_storms/...

#Hail
#AnthropogenicGlobalWarming

Paul Macdonald @paulmac.bsky.social · 3d

x.com/volcaholic1/...

#Precipitation
#Floods
#AnthropogenicGlobalWarming

1 1