Environment

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

By Marcos Pivetta

GEOLOGY

Rocks reveal sea-level changes along the Brazilian coastline

By Carlos Fioravanti

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

By Marcos Pivetta

Biodiversity

Almost 2,500 species face extinction in Brazil

Almost 2,500 species of animals and plants at risk of extinction in Brazil

By Redação

Geology

Earth’s first rain, 4 billion years ago

Earth’s first rain may have fallen 4 billion years ago

By Redação

Environment

Air pollution harms pollinators more than pests

Europe demands at least 30% of ecosystems to be restored by 2030

By Redação

Biology

Air pollution harms pollinators more than pests

By Redação

GEOLOGY

Extinct rivers of the Northeast

Sedimentary rock layers indicate that waters descended from mountains in the region some 450 million years ago

By Carlos Fioravanti

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

By Meghie Rodrigues

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%

By Marcos Pivetta