Atmospherical Sci.

Climate

Fragile defense against climate disasters

Lack of municipal infrastructure worsens landslides and floods

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Climatology

Drier soil, more intense storms

Contrast in surface temperatures could worsen storms

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CLIMATE CHANGE

Global warming amplifies heat waves, which could affect Brazilian cities up to 15 times a year

This type of extreme event has become more frequent, more intense, and longer-lasting in recent decades

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ENVIRONMENT

Artificial intelligence identifies areas most vulnerable to landslides

Study compares the effectiveness of five machine-learning models at predicting this type of disaster in São Sebastião

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CLIMATE CHANGE

2024 was the first year with global warming above 1.5 °C

All continents broke their average temperature record except for Oceania and Antarctica

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Policy

US withdraws from Paris Agreement and WHO

US President signs executive orders withdrawing the country from Paris Agreement and WHO

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INTERVIEW

Anacláudia Rossbach: The quest for more resilient cities

Brazilian director of United Nations program says cities play an important role in the process of adapting to and mitigating climate change

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Climate changes

The suffocation of Earth

Record greenhouse gas emissions result in unabated global warming

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Meteorology

Another El Niño, south of the equator

Wind and current changes in the Pacific influence climate across the planet

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Climate change

Bacteria in Amazon tree trunks are capable of absorbing methane

Study by international group indicates that the phenomenon occurs in non-flooded areas

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Climate

Global warming increased droughts and heat by 40% during June fires in the Pantanal

Climate change has made extreme events four to five times more frequent in the biome

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CLIMATE CHANGE

Lack of maintenance and design flaws prevented the flood containment system from protecting Porto Alegre

Damage could have been significantly reduced if the system, installed 50 years ago, had worked properly

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CLIMATE CHANGE

Global warming threatens main Atlantic Ocean current system

Ice loss in Greenland puts Atlantic Ocean currents at risk

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Atmospheric sciences

Water flows through the atmosphere and makes rain

System monitors atmospheric rivers, responsible for much of the rain that falls on Earth

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Meteorology

2023 was the hottest year on the planet since 1850

The global average temperature was 14.98 °C, almost 1.5 °C higher than in the preindustrial period

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video

Brazil dries up

Climate change gives rise to a region with an arid climate, previously non-existent in the country | 6'39

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Meteorology

Artificial intelligence could improve weather forecasting

Artificial intelligence could improve weather forecasting

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Climate

Global warming may increase the intensity of extratropical cyclones

The weather phenomenon caused deaths and destruction in southern Brazil in September

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Astronomy

Satellite debris in the stratosphere

On returning to Earth, satellites and rockets leave metal chemical elements in the stratosphere

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Data

Scientific articles on climate change

Data show increase in scientific articles on climate change

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Climate change

Waiting for even more dire effects

Severe droughts in the Amazon could also cause sudden tree mortality

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INTERVIEW

Pedro Leite da Silva Dias & Maria Assunção Faus: A good time for research

Married meteorologists discuss how studies on the atmosphere in the Amazon have strengthened Brazilian climate science and warn about the challenges ahead

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Cover

Temperature variations may cause five million deaths per year

The number is equivalent to 9.5% of all global deaths, with 75% of fatal victims living in Asia and Africa

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Cover

Urban heat islands make even small and midsized towns warmer

Temperatures can vary by as much as 10 degrees Celsius between areas covered by concrete and neighborhoods with more vegetation

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Cover

July was the hottest month in recent history and broke temperature records

Global warming shows no signs of letting up, causing forest fires in the Northern Hemisphere’s summer and a mild winter below the Equator

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Video

What is El Niño?

Animation explains why warming of surface waters in the Pacific Ocean can cause increasingly frequent extreme events | 7'16

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Environment

Signs of the next El Niño

The 2023 El Niño could be one of the most intense of the last three decades

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Geology

Agency takes responsibility for failed risk assessment

Agency admits failure to communicate volcanic risk to helicopter pilots

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Climate

CFC emissions have increased 2.6-fold over the past decade

Atmospheric concentration of five types of gas responsible for destroying the ozone layer peaked in 2020

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AEROSPACE TECHNOLOGY

New capabilities for space exploration

More Brazilian companies are investing in locally developed nanosatellites for commercial applications

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