Marcos Pivetta

Interview

Miguel de Barros: The sea swallowing the land

Sociologist from Guinea-Bissau discusses loss of arable land and rising food insecurity due to impact of climate change in West Africa

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Global Warming

The world has been around 1.5 °C warmer for over a year

It is the longest period in recent history in which the planet has experienced such a dangerous increase in average temperature

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Climate change

Injecting particles into the atmosphere could temporarily reduce global warming

The controversial technique of releasing aerosols could reduce the amount of sunlight reaching Earth, but the negative side effects might outweigh the benefits

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Interview

Bruno Geloneze: Injections alone will not solve the problem

New anti-obesity drugs work well, says UNICAMP endocrinologist, but they need to be combined with a good diet and exercise to produce lasting benefits

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ENVIRONMENT

Pantanal breaks wildfire record in first half of the year, reflecting an increase in fires across Brazil

The number of wildfires in the biome was 16 times higher than from January to June last year

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CÉSAR LATTES, 100

A major contribution

Lattes on Mount Chacaltaya in Bolivia, where mesons were recorded in nuclear emulsions

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CÉSAR LATTES, 100

The physicist who saw a bigger picture

César Lattes' studies were based on experiments with cosmic rays and the use of accelerators in particle physics

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ENVIRONMENT

Climate change and El Niño increased the frequency and intensity of rainfall in southern Brazil

Global warming doubled the likelihood of extreme precipitation, like the heavy rains of April/May, and increased the volume of rainfall in Rio Grande do Sul from 6% to 9%

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CÉSAR LATTES, 100

Supporting institutions

The physicist was one of the founders of the Brazilian Center for Physics Research (CBPF) and supported the creation of the CNPq

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CÉSAR LATTES, 100

A major contribution

The discovery of the pion led to a greater understanding of the cohesion of the atomic nucleus

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CÉSAR LATTES, 100

The physicist who saw a bigger picture

His studies were based on experiments with cosmic rays and the use of accelerators in particle physics

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Interview

Antonio Bianco: An adjustment to hypothyroidism treatment

The Brazilian physician based in the USA explains how he discovered that current hormone therapy could fail and proposes a correction to its use

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ASTROPHYSICS

Complex organic molecules found in the ice of nascent stars for the first time

Complex molecules associated to the origins of life identified in solid phase in two emerging stars

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PHYSICS

Quantum startup develops random-number generator used in lottery

Chilean company was founded based on a method developed by a physicist from Minas Gerais and his Polish colleague

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PLANNING

Quantum technologies need to attract more engineers

The topic was addressed at a thematic meeting held in Rio de Janeiro and São Paulo, a preparatory event for the 5th National Conference on Science, Technology, and Innovation

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Interview

Physicist Hans Herrmann explains why dunes are such a fascinating and complex system

German researcher based in Ceará studies the formation and movement of sand dunes sculpted by the wind

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Cover

Region in the north of Minas Gerais suffers its driest period in over seven centuries

The conclusion is based on analysis of the chemical composition of cave rocks in the municipality of Januária, located in the São Francisco River basin

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Cover

Global warming accelerates the water cycle and increases evapotranspiration

Excess atmospheric moisture can generate both heavy rainfall and prolonged droughts

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Cover

Brazil getting drier

Global warming makes the climate less humid, leading to emergence of the country’s first arid zone

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Astrophysics

Merging of neutron stars generates second-largest gamma-ray burst

Phenomenon produced rare earth metals in space

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Astrophysics

Concentrated energy

During its most recent period of maximum activity, the Sun emitted an unexpected escalation in high-energy gamma rays at its poles

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Physics

Study reduces uncertainty about excess magnetism in muons

Study reduces uncertainty about excess magnetism in muons

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Interview

Tasso Azevedo: Deforestation frontiers

Head of MapBiomas explains why deforestation declined in the Amazon in 2023, but increased in the Cerrado

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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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Astrophysics

Star brightness changes every four years, lighting up part of the surrounding nebula

Cloud of gas and dust is illuminated by the wave phenomenon, known as a light echo

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Climate change

COP28 acknowledges the role fossil fuels play in global warming, but stops short of banning them

United Nations conference held in Dubai recommends investing in clean and renewable energy sources

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Cover

The return of TerraClass

EMBRAPA and INPE resume the mapping of land use and cover in the Amazon, 14% of which is occupied by pasture and agriculture

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Cover

Forest guardians

Multiple satellite systems monitor deforestation in the Amazon and provide support for the target of zero deforestation by 2030

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Interview

Ima Vieira: Restore the forest with justice

Ecologist from Pará says that deforested areas of the Amazon often regenerate, but that the recovery bill must be paid by those who destroyed the forest

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Cover

Maps show that 14% of the Amazon is occupied by pasture and agriculture

EMBRAPA and INPE restart the TerraClass project, which monitors land use and cover in deforested areas of the biome

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