1.5/2°C Limit

The 1.5/2°C limits refer to internationally recognized thresholds for global average temperature increase relative to pre-industrial levels, established in climate policy under the Paris Agreement. The 1.5 °C goal aims to substantially reduce climate risks and impacts, while 2 °C represents a higher warming threshold associated with greater environmental and societal consequences. These limits are used to guide emission reduction pathways, assess mitigation efforts and evaluate projected effects on ecosystems, sea level and human systems.

Image: Sea surface temperature anomaly for September 2026
El Niño sets temperature record in key Pacific zone: EU monitorFactsNews

El Niño sets temperature record in key Pacific zone: EU monitor

Paris, France | AFP | Muser NewsDesk An intensifying El Niño broke a temperature record in a key zone of the Pacific in September, the EU's…
SourceSourceOctober 12, 2026 Full article
Image: Delegates seated at the Pre-COP31 climate meeting in Fiji, with country placards and Pacific national flags behind them
Pacific presses world for help ‘surviving’ climate change at pre-COP summitNews

Pacific presses world for help ‘surviving’ climate change at pre-COP summit

Nadi, Fiji | AFP | Muser NewsDesk Pacific leaders pressed wealthy nations for more funds to help them "survive" climate change Wednesday at a gathering aimed…
SourceSourceOctober 7, 2026 Full article
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Intense heat puts births in jeopardy, UN tells Fiji talksNews

Intense heat puts births in jeopardy, UN tells Fiji talks

Nadi, Fiji | AFP | Muser NewsDesk Extreme heat is increasingly linked to problems such as premature births or underweight babies, the UN climate chief warned…
SourceSourceOctober 5, 2026 Full article
Image: South Sea Island, Fiji (s. World powers gather in Pacific)
World powers gather in Pacific to chart climate battleNews

World powers gather in Pacific to chart climate battle

Wellington, New Zealand | AFP | Muser NewsDesk World powers are flying delegates to the Pacific to haggle over the fight against global warming, and to…
SourceSourceOctober 2, 2026 Full article
Image: Illustration of Earth with glowing connections linking regions across the globe, representing international cooperation on climate action and emissions reductions (AI Gen.)
Equitable cooperation shifts the burden of global emissions cutsClimate

Equitable cooperation shifts the burden of global emissions cuts

Building fairness into climate models changes who cuts emissions fastest and who provides financial support. IIASA-led research shows that fair-share pathways can reduce fossil fuel…
SourceSourceSeptember 23, 2026 Full article
Image: Landscape of the Matterhorn and its reflection (s. glacier extinction worldwide)
Global warming accelerates glacier extinction worldwideClimate

Global warming accelerates glacier extinction worldwide

When will the glacier in your valley disappear? Will the glacier you visited as a child still exist in 2050? And how much difference would…
SourceSourceSeptember 14, 2026 Full article
Image: view of the Perito Moreno Glacier and snowcapped mountains in Argentina. Perito Moreno, Santa Cruz, Argentina
Melting glaciers an ‘immediate’ climate risk: author of UN reportNews

Melting glaciers an ‘immediate’ climate risk: author of UN report

Paris, France | AFP | Muser NewsDesk Climate change is accelerating the loss of glaciers and increasing the risk of devastating events like the Himalaya floods,…
SourceSourceSeptember 2, 2026 Full article
Image: houses on a flooded lake under a cloudy sky (s. climate change, 1.5C overshooting limit)
UN says world must navigate ‘reality’ of 1.5 °C overshootClimate

UN says world must navigate ‘reality’ of 1.5 °C overshoot

Paris, France | AFP | Muser NewsDesk The United Nations outlined Wednesday how the world might bring global temperatures back to 1.5 °C once the milestone…
SourceSourceSeptember 2, 2026 Full article
Image: An elderly couple strolls through a sunny park, shading themselves with an umbrella
Older people face greater heat risks as world warms: studyScienceNews

Older people face greater heat risks as world warms: study

Paris, France | AFP | Muser NewsDesk The threat that rising temperatures fuelled by climate change pose to the health of older people has been dramatically…
SourceSourceAugust 18, 2026 Full article
Image: Figure 12 - Global mean annual number of marine heatwave (MHW) days from ERA5 (1940–2025), OISST (1982–2025), OSTIA (1982–2025), and CRW (1985–2025), and the mean of these shown in black
Earth’s heat buildup accelerates as global warming reaches 1.37 °CClimateFacts

Earth’s heat buildup accelerates as global warming reaches 1.37 °C

Human-caused warming reached 1.37 °C above pre-industrial levels in 2025, while greenhouse gas emissions and key climate indicators remained at or near record highs Summary:…
SourceSourceJune 14, 2026 Full article
Image: SWOT
Scientists warn of record heat, threats to climate monitoringNews

Scientists warn of record heat, threats to climate monitoring

Paris, France | AFP | Muser NewsDesk Planetary heating is intensifying and key climate indicators are deteriorating, top scientists said Thursday, warning that funding decisions affecting…
SourceSourceJune 11, 2026 Full article
Image: Hajj, pilgrims, Kaaba Mecca, Saudi Arabia
Climate change is extending dangerous heat exposure during HajjClimate

Climate change is extending dangerous heat exposure during Hajj

Survivability limits exceeded during the 2024 Hajj Dangerous heat is extending beyond the summer months Heat and humidity exceeded physiological survivability limits during parts of…
Muser NewsDeskMuser NewsDeskMay 29, 2026 Full article
Image: WMO 2026 Calendar Competition
Temperatures likely to remain at record levels in 2026-2030: UNNews

Temperatures likely to remain at record levels in 2026-2030: UN

Geneva, Switzerland | AFP | Muser NewsDeskEl Niño effect on 2027 1.3 °C to 1.9 °C range Arctic heat warning Global average temperatures are likely to…
SourceSourceMay 28, 2026 Full article
Image: Solar panels, wind turbines, electricity transmission towers, and hydrogen infrastructure in a large renewable energy landscape at sunset
Global fossil fuel phase-out could require up to 80% more electricityClimate

Global fossil fuel phase-out could require up to 80% more electricity

Replacing fossil fuels worldwide by 2050 could require up to 80% more electricity generation, while reducing reliance on carbon capture and CO₂ removal technologies Summary:…
SourceSourceMay 18, 2026 Full article
Image: Abstract globe (s. climate news, climate change, heat)
Nations to kick off world-first fossil fuel exit talksNews

Nations to kick off world-first fossil fuel exit talks

Santa Marta, Colombia | AFP | Muser NewsDesk More than 50 governments meet in Colombia on Tuesday against the backdrop of the Iran war and a…
SourceSourceApril 28, 2026 Full article
Image: Buffalo gathered in a nearly dried-up waterhole during drought conditions linked to moderate global warming and climate change
Moderate warming still linked to severe climate extremesClimate

Moderate warming still linked to severe climate extremes

Extreme climate impacts on people and the environment are often associated with very high levels of global warming (3 or 4°C). A new study led…
SourceSourceMarch 26, 2026 Full article
Hot day, Climate change, Global warming image (s. heatwave)
Climate overshoot likely unavoidable but net zero timeline unchangedClimate

Climate overshoot likely unavoidable but net zero timeline unchanged

A study published in Nature Climate Change examines how temporary climate overshoot – particularly of the 1.5 °C target – has evolved from a modelling…
SourceSourceMarch 9, 2026 Full article
Image: Remains of the McCloud Glacier (2024), photographed by Prof Pete Convey
Antarctic Peninsula warming scenarios show stark sea level risks by 2100 and 2300Climate

Antarctic Peninsula warming scenarios show stark sea level risks by 2100 and 2300

Antarctica’s pale expanses of ice keep water locked up and reflect heat from the planet – but the climate crisis is putting these safeguards at…
SourceSourceFebruary 22, 2026 Full article
Image: Polar bear at sunset on ice
Climate Science Digest: January 22, 2026Science

Climate Science Digest: January 22, 2026

Explore the latest insights from top science journals in the Muser Press roundup (January 22, 2026), featuring impactful research on climate change challenges. In brief:…
Muser NewsDeskMuser NewsDeskJanuary 22, 2026 Full article
Image: Annual surface air temperature anomalies for the Arctic region (north of 40°N) for each year from 2002 to 2025, relative to the average for the 1991–2020 reference period
2025 ranked as third hottest yearNewsFacts

2025 ranked as third hottest year

Global temperatures remained near historic highs in 2025, making it the third hottest year ever recorded and extending a run of exceptional warmth that now…
Muser NewsDeskMuser NewsDeskJanuary 14, 2026 Full article
Image: AI art of Earth - climate change effects (s. science, climate, Muser)
Climate Science Digest: December 8, 2025Science

Climate Science Digest: December 8, 2025

Explore the latest insights from top science journals in the Muser Press roundup (December 8, 2025), featuring impactful research on climate change challenges. In brief:…
Muser NewsDeskMuser NewsDeskDecember 8, 2025 Full article
Image: Earth
To counter climate denial, UN scientists must be ‘clear’ about human role: IPCC chiefNews

To counter climate denial, UN scientists must be ‘clear’ about human role: IPCC chief

Saint-Denis, France | AFP | Muser NewsDesk With US President Donald Trump and other sceptics calling climate change a hoax, the UN's climate science body must…
SourceSourceDecember 5, 2025 Full article
Image: AI art of Earth - climate change effects (s. science, climate, Muser)
Climate Science Digest: November 19, 2025Science

Climate Science Digest: November 19, 2025

Explore the latest insights from top science journals in the Muser Press roundup (November 19, 2025), featuring impactful research on climate change challenges. In brief:…
Muser NewsDeskMuser NewsDeskNovember 19, 2025 Full article
Image: COP30 President André Corrêa do Lago, COP30 CEO Ana Toni and Liliam Chagas, Director for Climate at the Ministry of Foreign Affairs, attend a press conference during the 30th Conference of the Parties (COP30)
Climate talks run into night as COP30 hosts seek breakthroughNews

Climate talks run into night as COP30 hosts seek breakthrough

Belém, Brazil | AFP | Muser NewsDesk COP30 hosts Brazil on Monday extended negotiations into the night at the UN climate talks as they pushed for…
SourceSourceNovember 18, 2025 Full article