Carbon Border Adjustment Mechanism (CBAM) | Marine Heatwaves | Memory Price Inflation (Memflation) | Amazon Rainforests

Carbon Border Adjustment Mechanism (CBAM)

Environment

Context

• The European Commission has proposed expanding the scope of the Carbon Border Adjustment Mechanism (CBAM) to include around 180 additional products from January 1, 2028.

Carbon Border Adjustment Mechanism (CBAM)

• It is a carbon tariff on carbon intensive products, such as cement and some electricity, imported by the European Union.
• Significance – As a price on carbon, it discourages emissions. As a trade-related measure, it affects production and exports.

Marine Heatwaves

Geography

Context

• Tropical cyclones passing over marine heatwaves (MHWs) cause 60% more billion-dollar disasters through rapid intensification, warns a new study.

Marine Heatwaves

• It is a prolonged period of anomalously high ocean surface temperatures in a specific region.

They are characterised by two key parameters:

• Duration: Lasting anywhere from several days to several months.
• Intensity: Measured as a deviation from the long-term seasonal average, known as a temperature anomaly.

Key Drivers

• Climate Change: Oceans absorb 90%+ of excess atmospheric heat, raising baseline temperatures
• Ocean Currents: Warm water pools shift into cooler regions.
• Atmospheric Systems: High-pressure systems like the North Pacific High trap surface heat
• El Niño:  Elevates Pacific sea surface temperatures, triggering the largest recorded MHWs.

Memory Price Inflation (Memflation)

Economy

In News

• Gartner’s 2026 global semiconductor revenue forecast of $1.3 trillion cited memflation as a key driver of the industry’s third consecutive year of double-digit growth.

Memflation

• Inflation refers to a general rise in the overall prices of goods and services in an economy over time.
• Memflation refers to a structural economic trend where prices of semiconductor memory rise rapidly and persistently over time.

Amazon Rainforests

Environment

Context

• A recent study shows that consecutive droughts in 2023–2024 pushed Amazon rainforest moisture and biomass to their lowest levels in over three decades, indicating severe ecological stress.

Amazon Rain Forests

• Location: The region belongs to nine nations of the South American continent.
• Surrounded by – It is bounded by the Guiana Highlands to the north, the Andes Mountains to the west, the Brazilian central plateau to the south, and the Atlantic Ocean to the east.
• Area Covered: The majority of the forest, 60%, is in Brazil, followed by Peru with 13%, Colombia with 10%, and with minor amounts in Bolivia,Ecuador,French Guiana, Guyana, Suriname and Venezuela.
• Climate: Hot and humid climate with temperatures of 26-30°C throughout the year.There are no periodic seasons.The precipitation ranges from 2,000 mm to 10,920 mm annually.
• Tribes: Yanomamo,Kayapo,Akuntsu,Matses,Tupi etc.
• Fauna: Anaconda,Jesus lizard,howler monkey, golden lion tamarin, jaguar,sloth, spider monkey,Amazon River dolphin,toucan and the scarlet macaw,poison dart frog and the glass frog.
• Flora: Moist broadleaf tropical rainforest like myrtle,laurel,palm, acacia,rosewood,Brazil nut,rubber tree, mahogany and Amazonian cedar.

Significance of the Rainforests

• Lungs of the planet: Rainforests generate about 20% of the world’s oxygen and its trees play a key role in reducing pollutant levels.
• Fight climate change: They act as a crucial buffer in the global fight against climate change as it holds tremendous capacity to store carbon.
• Medicinal Properties: Many of these plants contain bioactive compounds capable of treatmenting diseases that are not yet curable, especially cancer.

Threat to the forests

• Climate Change: Due to climate change the forests are witnessing various challenges like changes in rainfall patterns,pollution etc.
• Deforestation: The size of the Amazon forest shrank dramatically as a result of settlers’ clearance of the land to obtain lumber and to create grazing pastures and farmland.
• Wildfires: It causes threat to the survival of ecosystems and biodiversity. The 2019 forest fires in the region have led to widespread devastation in the region.

Additional Information – Amazon River

• It is the largest river by volume of water and second longest river after the Nile river of Africa in the world.
• Source:River has its source in the Peruvian Andes, at an elevation of 5,598 m.
• Length:6400 km.
• Basin:The basin includes the greater part of Brazil and Peru,some parts of Colombia, Ecuador and Bolivia and a small area of Venezuela.
• Tributaries:Japurá , Juruá, Madeira, Negro, Purus, and Xingu rivers.
• Mouth:Atlantic Ocean on the northeastern coast of Brazil.