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tropics

Aerial view of the canopy of the Congo Basin rainforest.
Posted inNews

Old Forests in the Tropics Are Getting Younger and Losing Carbon

by Kaja Šeruga 2 October 20252 October 2025

New research quantifying the global impact of forest age transitions found that 140 million tons of aboveground carbon are lost per year because of old-growth forests being replaced by younger stands.

Bees congregate on a tropical tulip ginger flower.
Posted inNews

El Niño May Be Driving Insect Decline in the Tropics

by Roberto González 15 September 202515 September 2025

Stronger and more frequent El Niño events are contributing to a decline in arthropod diversity and population, as well as to a reduction in the ecological services the animals provide.

Figure from the paper.
Posted inEditors' Highlights

Equatorial Deep Ocean Response to the Madden-Julian Oscillation

by Xin Wang 27 August 202526 August 2025

The changes in Madden-Julian Oscillation wind can trigger a response in the deep equatorial Pacific and Indian Ocean.  

Un gran árbol con flores rosadas se alza por encima de un bosque de otros árboles verdes.
Posted inNews

Algunos árboles tropicales se benefician de los rayos

Katherine Kornei, Science Writer by Katherine Kornei 10 June 20259 June 2025

Dos imágenes muestran el mismo árbol, antes (izquierda) y después (derecha) del impacto de un rayo. En la imagen de la derecha, el árbol no está cubierto de enredaderas leñosas y algunos de los árboles que lo rodean han muerto.

A boat floats atop an inlet covered in brown Sargassum seaweed.
Posted inNews

Have We Finally Found the Source of the “Sargassum Surge”?

by Sarah Nelson 14 May 202514 May 2025

The complexity of modeling the tropical Atlantic makes identifying the source of the ongoing seaweed blooms difficult.

A large tree with pink blossoms towers above a forest of other green trees.
Posted inNews

Some Tropical Trees Benefit from Lightning Strikes

Katherine Kornei, Science Writer by Katherine Kornei 12 May 202510 June 2025

Direct lightning strikes cause minimal damage to Dipteryx oleifera. But these same strikes effectively kill parasitic vines and neighboring trees that compete with the species for light and nutrients.

Graphs from the study.
Posted inEditors' Highlights

Simulating a Unique Wind System in a Kilometer-Scale Model

by Aditi Sheshadri 27 February 202526 February 2025

A new study shows that a kilometer-scale model can directly simulate aspects of the Quasi-Biennial Oscillation.

Photo of a cloud.
Posted inEditors' Highlights

Tropical Congestus Clouds Explained by Water Vapor Spectroscopy

by Bjorn Stevens 25 February 202524 February 2025

A new study demonstrates how the abundance of congestus clouds in the tropics can be explained by the water molecule’s discerning appetite for infrared radiation.

A side-by-side image of Earth and Mars.
Posted inEditors' Highlights

Mars and Earth: A Tale of Two Energy Budgets

by Xi Zhang 9 January 20259 January 2025

The first view of Mars’ latitudinal radiant energy budget reveals stark contrast with Earth’s energy distribution, offering new insights into each planet’s unique energy dynamics.

Graphs from the paper.
Posted inEditors' Highlights

Characteristics of Moist Layers over the Tropical Atlantic

by Suzana Camargo 22 November 202420 November 2024

In a new study, characteristics of elevated moist layers, their seasonality, spatial distribution, structure, and the coupling of mid-tropospheric circulation and convection are examined over the tropical Atlantic.

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