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From the College of Natural Sciences
Some Trees May Play an Outsized Role in the Fight on Global Warming

Some Trees May Play an Outsized Role in the Fight on Global Warming

Black locust trees have a symbiotic relationship with nitrogen-fixing bacteria that allow them to access nitrogen, which is critical for growth. Credit: iStock.

As greenhouse gases like carbon dioxide continue to pile up in the atmosphere, the world is experiencing more destructive extreme weather events like hurricanes, heatwaves, floods and droughts. A new study, published earlier this month in the scientific journal Nature Plants, finds that as Earth continues to warm, a certain group of trees, called nitrogen-fixing trees, may be able to help forests remove more heat-trapping CO2 from the atmosphere than previously thought.

New Insights Could Lead to Crops Adapted to a Warming World

New Insights Could Lead to Crops Adapted to a Warming World

Pairs of seedlings show the difference in growth patterns for plants living in 22°C (left one in each pair) versus 28°C (right). Pairs of seedlings are shown for each day, from 2 to 7 days.

When air temperatures rise, plants tend to grow differently: they grow taller, their roots grow deeper, they bloom earlier and pores in their leaves get fewer. By helping them stay cooler and retain more water, these changes might enable them to adapt to our rapidly warming world. But there's a big downside for us humans. When it's hotter, crop plants that we depend on tend to have a lower yield.

Integrative Biology Professor Wins Early Career Award for Contributions to Ecology

Integrative Biology Professor Wins Early Career Award for Contributions to Ecology

Caroline Farrior, an assistant professor in the Department of Integrative Biology, was elected as one of 10 Early Career Fellows for 2021 by the Ecological Society of America, an organization of professional ecologists.

To Protect Nature’s Benefits, Researchers Recommend More Focus on People

To Protect Nature’s Benefits, Researchers Recommend More Focus on People

People benefit from ecosystems in different ways; new research focuses on understanding that diversity to protect nature’s benefits.

​To calculate the true value of a forest, we need to know how people benefit from it, according to new research published in Nature Sustainability. A healthy forest holds a treasure trove of benefits for people — it can filter water for downstream communities, supply timber for building, and provide a place for people to connect with nature. But a forest — or any other ecosystem — won't necessarily provide the same things to everyone.

Model Predicts Which Coral Reefs Will Better Adapt to Global Warming

Model Predicts Which Coral Reefs Will Better Adapt to Global Warming

Various staghorn corals in the Great Barrier Reef. Image credit: The Ocean Agency / XL Catlin Seaview Survey.

​Climate change is causing coral reefs around the world to decline. According to a new study in the journal Global Change Biology, reefs that receive more heat-tolerant coral larvae from warmer ocean regions will be more likely to adapt and survive than those that receive less. The discovery was made using a computer model created by University of Texas at Austin evolutionary biologist Mikhail Matz.

Long-Living Tropical Trees Play Outsized Role in Carbon Storage

Long-Living Tropical Trees Play Outsized Role in Carbon Storage

Irene del Carmen Torres Dominguez measures the diameter of a tree on Barro Colorado Island in Panama. Since 1982, more than 200,000 trees are measured every five years. (Photo by Christian Ziegler)

A group of trees that grow fast, live long lives and reproduce slowly account for the bulk of the biomass—and carbon storage—in some tropical rainforests, a team of scientists says in a paper published this week in the journal Science. The finding that these trees, called long-lived pioneers, play a much larger role in carbon storage than previously thought may have implications in efforts to preserve forests as a strategy to fight climate change.

Hidden Source of Carbon Found at the Arctic Coast

Hidden Source of Carbon Found at the Arctic Coast

Dr. Craig Connolly takes a groundwater sample to measure the concentration and age of organic carbon and nitrogen in groundwater flowing beneath the beach. Credit: Jim McClelland.

A previously unknown significant source of carbon just discovered in the Arctic has scientists marveling at a once overlooked contributor to local coastal ecosystems – and concerned about what it may mean in an era of climate change.

Arctic Rivers Can Help Monitor Greenhouse Gases Released from Thawing Permafrost

Arctic Rivers Can Help Monitor Greenhouse Gases Released from Thawing Permafrost

James McClelland and his colleagues developed a new way to monitor carbon released from thawing permafrost in the Arctic by analyzing water samples from major rivers.

As Earth's climate warms, experts predict the rate of greenhouse gas emissions from thawing Arctic permafrost and peat will rise, which will further boost climate warming. Because the rate of permafrost thaw varies widely across the Arctic and data from remote areas is limited, it's been challenging for scientists to monitor actual changes on the ground.

A Surprising Effect of Texas Drought: Changes to the Marine Food Web

A Surprising Effect of Texas Drought: Changes to the Marine Food Web

When Texas' worst drought on record hit the state between 2011 and 2015, it did more than dry up rivers and lakes. It changed the chemical composition of fish eggs, which revealed bigger changes to the marine life in Aransas Bay.

Success of Conservation Efforts for Important Caribbean Reef Fish Hinges on Climate Change

Success of Conservation Efforts for Important Caribbean Reef Fish Hinges on Climate Change

Photo credit: Alfredo Barroso

For more than 20 years, conservationists have been working to protect one of the most recognizable reef fish in the Caribbean, the endangered and iconic Nassau grouper, and thanks to those efforts, populations of this critical reef fish have stabilized in some areas. But in a new paper, published in the journal Diversity and Distributions, marine scientists said climate change might severely hinder those efforts by the end of this century.