New research reveals how hundreds of species affect Earth’s surface processes, from vast termite mounds visible from space to beavers that produce whole wetlands.
Termites mounds in the bangle bangle range in Western Australia. Image credit: ouderkraal/cc by-sa 3.0.
“This study shows that the role of animals in shaping the Earth’s landscape is far more important than previously recognized,” says Professor Gemma Harvey, a researcher at Queen Mary University in London.
“From beavers that create wetlands to ants that build soil mounds, these diverse natural processes are extremely important, but there is a risk of losing them as biodiversity decreases.”
“From small ants moving through soil to salmon remodeling riverbeds, this study highlights the diversity and scale of animal impacts across all freshwater and terrestrial ecosystems.”
“By estimating the collective energy of these natural engineers, this study shows that their topographical contributions are comparable to those of hundreds of thousands of major floods.”
In this study, Professor Harvey and colleagues identified 603 species, genera, or families, including insects, mammals, fish, birds, and reptiles to create landscapes in a surprising way.
Despite covering only 2.4% of the planet’s surface, freshwater habitats take on a third of these astonishing species.
Animals collectively contribute at least 76,000 gigare energy each year to shape the surface of the earth. This is a number that rivals hundreds of thousands of extreme floods.
This estimate is likely to be conservative, especially in tropical and subtropical regions where biodiversity is the highest but research is limited.
“Terrates build a huge network of Brazilian mounds. Some cover thousands of kilometers, but salmon spawning can alter as much sediment as annual floods.” The researcher said.
“Even ants change soil structure and drainage through their small but countless actions.”
Almost 30% of identified species are rare and endemic or threatened, and can cease to cease before a critical topographical process is completely important.
This loss can have great consequences for the ecosystem and the landscapes they support.
“This study provides new insights into biodiversity conservation and ecosystem restoration,” Professor Harvey said.
“How can rewild and species reintroduction projects, such as the reintroduction of beavers to restore wetlands, help combat environmental challenges such as erosion and flooding by leveraging these natural processes? It shows that.
study It was published in Proceedings of the National Academy of Sciences.
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Gemma L. Harvey et al. 2025. The global diversity and energy of animals that shape the surface of the earth. pnas 122 (8): E2415104122; doi: 10.1073/pnas.2415104122
New Jersey’s governor issued a drought warning Wednesday.
State officials said the state is experiencing the driest conditions in nearly 120 years, prompting an increase in wildfires.
The extreme drought is part of a widespread drought plaguing the Northeast.
New Jersey’s governor issued a drought warning Wednesday, stating that the state could impose mandatory water restrictions if conditions worsen.
A record dry spell has left New Jersey at its driest in nearly 120 years, leading to a significant rise in wildfires, as reported by state officials during a news conference.
The New Jersey State Forest Fire Department has battled 537 fires that have scorched thousands of acres since early October, according to Governor Phil Murphy. This number is 500 more fires than the same period last year.
Murphy urged residents to heed the drought warnings seriously and voluntarily decrease their water usage.
“Each of us needs to do everything we can to conserve water,” he emphasized.
Tim Eustace, executive director of the North Jersey Regional Water Commission, criticized the state for not declaring a drought emergency, which usually restricts non-essential outdoor water use.
“I’ve always been against using potable water to water lawns. It’s a terrible waste of resources,” Eustace stated.
His commission supplies water to around a third of New Jersey, with the main reservoir, Wanaque Reservoir, at 45% capacity as of Wednesday.
Monday at Wanaque Reservoir in Ringwood, New Jersey. Ted Shafley/Associated Press
The state’s other major reservoir, Manasquan Reservoir, is at 51% of its capacity, while the Passaic River, a vital drinking water source, is at about 14% of its normal capacity, sufficient to meet demand, officials assured.
New Jersey American Water, serving approximately 2.9 million people in the state, issued conservation notices to customers on Wednesday. Mark McDonough, president of New Jersey American Water, clarified that the notice was described as “mandatory” to convey urgency but is not enforceable against violators.
“I’d like to limit movement if possible, but I don’t have the authority to issue tickets or inspect people’s lawns,” McDonough remarked. “If we can get our customers to focus on saving water, we can make a significant impact.”
Murphy mentioned that the National Oceanic and Atmospheric Administration’s winter forecast predicts even drier weather ahead. Forecasting seasonal outlook Temperatures are higher than average, with precipitation chances remaining unchanged regardless of above or below average levels.
The dry conditions affecting New Jersey are part of a broader drought across the Northeast. In October, cities like Newark, New Jersey. Wilmington, Delaware. And Norfolk, Virginia, registered no rainfall at all. Southeast Regional Climate Center collects precipitation data nationwide. Philadelphia and Washington, D.C., set records for the most consecutive days without measurable precipitation.
Throughout the United States, October was declared One of the driest months on record according to NOAA. US Drought Monitor Data shows over half of the continental United States is facing some level of drought, with 56% of the Northeast impacted.
State climatologist Dave Robinson noted that New Jersey usually receives rainfall evenly over several months. However, some regions have not seen any measurable rainfall for 40 days, a first in nearly 150 years of record-keeping.
“We’ve experienced longer droughts before, but we’ve never encountered anything as exceptional as this prolonged dry period,” Robinson remarked.
He highlighted that New Jersey typically experiences heavy rainfall in October due to hurricanes, remnants of tropical cyclones, or nor’easters forming in the mid-Atlantic region.
Both weather patterns were absent this fall, with a ridge of high pressure dominating New Jersey and other Northeastern areas for weeks.
“There’s no significant storm to break through this ridge. It’s been a slow and frustrating process,” Robinson explained. “There are indications that the central part of the country, which has been relatively dry, is starting to see more moisture. …It appears to be gradually shifting eastward.”
November has marked the 12th consecutive month of above-average temperatures in New Jersey. Atmospheric warming can exacerbate droughts and heighten the chances of extreme rainfall.
“With a warmer climate system, there’s more energy that can hold moisture in the atmosphere. …If we can’t access that moisture source, a warmer climate will worsen dryness and lead to more severe droughts,” Robinson stated. “The system has become more volatile.”
Given New Jersey’s dry spell since mid-August, it would require several months of above-average, if not considerably above, rainfall to alleviate the drought, estimated Sean LaTourette, director of the state Department of Environmental Protection.
Some areas received about a quarter of an inch of rain on Sunday, but Murphy remarked that it was “far from adequate.”
Firefighters respond to a forest fire in Evesham, New Jersey, on November 6th. New Jersey Department of Environmental Protection (via AP)
Finally, a state of drought emergency was instated in New Jersey. The last time a drought warning was issued was in 2016, lasting over six months, LaTourette indicated.
Greg McLaughlin, New Jersey Forest and Fire Department’s Office of Forests and Natural Lands manager, mentioned that the current condition measures 748 out of 800 on a scale for forest floor dryness.
“These numbers are unprecedented in the 118-year history of the Forest Fire Service,” McLaughlin remarked. “The impact of this dryness on wildfires cannot be overstated.”
The Jennings Creek Wildfire along the New York-New Jersey border continued burning on Wednesday, with containment at 30%. Over 5,000 acres were destroyed in both states. An 18-year-old New York park worker lost his life to a falling tree while battling a fire in Orange County, New York, last Saturday.
“We sincerely appreciate his dedication and willingness to protect the residents of New York and New Jersey from these deadly fires,” Murphy expressed.
In regions of the rural West, high-stress wildfire events are leading to common sentiments among residents. These events are becoming more frequent, with large fires and evacuations leaving people tired of their lives being uprooted. Many have become accustomed to the risk and are more confident in their ability to handle the situation on their own.
As a result, some individuals are choosing to stay in their homes despite evacuation orders from authorities, especially in areas where there is a lack of trust between local residents and those managing emergency responses. Amanda Stasiewicz, an assistant professor at the University of Oregon, noted that this sense of mistrust is contributing to more rural communities deciding to stay and defend themselves during wildfires.
The increasing intensity of fires due to climate change is leading fire managers to take a more conservative approach, which is further straining relations in rural communities. With fires becoming more aggressive, creating their own weather patterns and becoming less predictable, residents are feeling the need to take matters into their own hands.
Similar movements are happening in other rural areas, such as Northern California where residents facing the Park Fire have chosen not to evacuate. In total, there are 94 major fires being battled by over 29,000 firefighters across the West.
The current fire season in the Pacific Northwest has been particularly severe, with 51 large fires burning in Oregon, Washington, and Idaho. The Pioneer Fire in Stehekin has grown to over 33,700 acres, with only 12% containment.
Residents of Stehekin, a remote community of approximately 85 people, are facing the challenge of the Pioneer Fire. Surrounded by mountains and Lake Chelan, the community is known for its resistance to modern conveniences and its self-sufficiency.
As the fire season progresses, sentiments like those seen in Stehekin are becoming more common in rural communities. With evacuation presenting financial burdens and concerns about asset protection, rural residents are feeling the need to fend for themselves during these natural disasters.
In North Carolina, for instance, Ward and colleagues have assisted counties in formulating heat preparedness plans to identify their most vulnerable residents.
He emphasized that government officials should approach the rise in heat and humidity in a similar manner to how they handle hurricanes, tornadoes, and other emergencies.
“Emergency management and public health officials are already well-prepared for various extreme weather events, but they are not as well-prepared for heat-related incidents,” Ward explained.
The events of last summer raised concerns, she noted.
“It was a Category 5 heat event,” Ward explained. “The severity of what we experienced last summer was enough to bring attention to this issue.”
Research indicates that climate change is leading to an increase in the frequency, duration, and intensity of heatwaves worldwide. Last year marked the hottest year on record, and the warming trend continues. According to the European Union’s Copernicus Climate Change Agency, April saw World temperature records being set for 11 consecutive months.
Forecasts suggest that temperatures will be higher than usual across much of the United States in the next three months, as per the National Oceanic and Atmospheric Administration’s predictions. According to the National Oceanic and Atmospheric Administration.
Ward expressed optimism that cities were taking the threat of heatwaves seriously, although significant challenges lie ahead. Securing funding for preparing for extreme heatwaves, particularly in rural regions, is a major challenge.
Addressing the root social issues that exacerbate during heatwaves, such as homelessness, soaring energy costs, and economic disparities, is an even greater challenge.
However, Ward remains hopeful that the experiences of last summer have motivated some local governments to take action.
“Moving forward, I would like to see a stronger emphasis on preventive measures to reduce these exposures in the first place, so we are not constantly in response mode,” she stated.
According to NASA’s estimates, Louisiana has lost about 750 square miles of coastal wetlands since 1984. Check out the report for more details. In a recent paper published in February, researchers have predicted that three-quarters of Louisiana’s wetlands could be submerged by 2070.
In various coastal cities across the United States, the land is gradually sinking due to fossil fuel and water extraction, exacerbating sea level rise. By 2050, the sinking phenomenon could potentially put over half a million more people at risk of severe flooding.
Raising resilient children
Anna Dupont, 21, is one of the few young residents left in Cameron Parish. She cherishes her parents’ stories about the vibrant community of Cameron.
Anna Dupont, 21, is one of the few young people left in Cameron after a series of devastating hurricanes. Michael Gemelli/NBC News
Before Hurricane Rita, Cameron Parish was a thriving, close-knit community that enjoyed festivities like crawfish boils and barbecues, with residents being proud supporters of the high school football team.
Dupont recalls nostalgic memories of fishing and birdwatching in the expansive wetlands surrounding her former home. She laments the loss of her favorite hangout spot, T-Boy’s Cajun Grill, which now stands as an empty lot.
Cameron is considered ground zero for climate change by Dupont, who witnessed her home being destroyed twice by storms before she even graduated from high school. Hurricane Laura’s impact forced her and her family to evacuate, leading to a sense of loss and emptiness upon their return.
Despite a joyful upbringing, Dupont saw her peers struggle with disrupted childhoods due to unstable living conditions post-hurricanes, leading to mental health challenges and substance abuse in some cases.
While many residents departed Cameron Parish after Hurricane Rita in 2005, others chose to remain resilient despite subsequent natural calamities. However, the proposed expansion of Venture Global LNG’s CP2 LNG terminal construction has stirred concern among the remaining residents.
The ancient relationship between Mexico City and water dates back to the city’s origins. Situated on a former lakebed that was drained after the Spanish conquest in the 16th century, the city now relies on underground aquifers and a network of canals, dams, and reservoirs from the Kutsamara water system for its main water supply.
Approximately 70% of the city’s water comes from underground sources, with the remaining 30% supplied by the Cuzamara system to the Mexico City metropolitan area and the Toluca Valley. However, increasing urbanization and overuse of aquifers have led to land subsidence, causing the city to sink at a rate of about 20 inches per year since 1950 due to continued groundwater extraction.
Despite efforts to repair and upgrade aging infrastructure, Mexico City’s water system struggles to keep pace with the demands of a rapidly growing population. Climate change further exacerbates the water crisis, with persistent drought and rising temperatures leading to decreased precipitation and limited water replenishment for aquifers and dams.
This water scarcity crisis has sparked protests and unrest among residents, with many areas facing severe water shortages. Efforts to conserve water and prioritize its usage have been urged by local authorities, as communities like Iztapalapa struggle to cope with limited water access.
For residents like Hernández Villa, conserving water has become a daily challenge, with measures like reducing laundry frequency and bathing in containers to stretch their limited water supply. The urgent need for sustainable water management and infrastructure upgrades is evident, as Mexico City grapples with a worsening water crisis.
Dennis Chou reported from New York City and Alvinson Linares from Mexico City.
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