Atmospherical Sci.

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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History

Irregular rainfall had a negative impact on the Mayans

Irregular rainfall patterns were a decisive factor in the breakdown of Mayan cities

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Public policy

Combating disasters requires analysis of climate projections

In addition to historical data, governments must consider future scenarios in their efforts to adapt to the effects of climate change

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Climate

Extreme rainfall with the potential to cause disasters is increasingly common in parts of Brazil

Number of days with extreme rainfall in São Paulo and other state capitals has increased since the 1990s

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Environment

The ozone layer in recovery

Ozone layer is recovering and should be restored within a few decades

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Environment

Indigenous lands absorb more carbon

Parts of the Amazon managed by Indigenous peoples absorb more carbon than other areas

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Environment

Nutrients from the Sahara to the Amazon

Dust from the Sahara is carried by strong winds to the Amazon

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Environment

Fire consumes vegetation on icy Siberian soil

Wildfires on frozen ground in Siberia are expected to increase exponentially by the middle of the century

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COVER

Emissions of carbon dioxide—the most abundant greenhouse gas—double in the Amazon

Study indicates that increased deforestation resulted in the rainforest emitting more carbon than it absorbed in 2019 and 2020

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Geology

In the depths of Iceland

Volcanologist identifies pattern after observing the eruption of Fagradalsfjall volcano for 50 days

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Environment

Frosts hinder Cerrado recovery

Frost can have similar impacts to fire on tree growth

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Geophysics

Asteroid that wiped out the dinosaurs generated the deadliest tsunami in history

Asteroid that wiped out the dinosaurs generated the deadliest tsunami in history

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Geophysics

Earthquakes in the sky

Atmospheric balloons at altitude of 20 kilometers detect earthquake in Indonesia

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