Climate and environment updates: 7 key measures of Earth's health in danger, report warns

A new United States Department of Energy analysis on liquefied natural gas exports finds that continued production increases are inconsistent with U.S. climate goals, could increase energy costs and present community health concerns.

“Over the past five years, the U.S. has dramatically accelerated the pace of its LNG exports. The stocks that the department has already approved are more than sufficient to meet global demand for decades,” Energy Secretary Jennifer Granholm said Tuesday. “Further increasing exports, unconstrained, would surely generate more wealth for the LNG industry, but American consumers and communities and our climate would pay the price.”

Liquified natural gas, or LNG, is a natural gas that has been cooled into its liquid state so that it can be more easily shipped and stored, according to the DOE.

The U.S. became the largest LNG exporter in the world in 2023, according to the U.S. Energy Information Administration.

The DOE analysis, released Tuesday, found that LNG exports account for nearly half of domestic LNG production. It also found that current export volumes are expected to double by 2030, at which point the department expects the U.S. will exceed other countries’ exports by about 40%.

“With additional unfettered exports, wholesale domestic natural gas prices would increase by over 30% and the average American household will pay more than an extra $100 annually on their gas bills,” Granholm said.

The secretary added that communities “living in the shadows of LNG export projects” would be subject to even higher methane levels, nitrogen oxides and particulate matter. She said the annual direct emissions associated with exports in 2050 would represent more than 25% of our yearly greenhouse gas emissions.

Tuesday’s report has been in the works since January when the Biden Administration announced a pause on approvals for new LNG export terminals while the agency re-assessed whether such projects were in the “public interest.”

Under the authority of the National Gas Act, the DOE can make such determinations for exports to countries that are not part of a Free Trade Agreement with the U.S.

Earlier this year, President Biden said the pause “sees the climate crisis for what it is: the existential threat of our time.”

The incoming Trump Administration is expected to reverse course and expedite LNG export projects that are still awaiting approval as part of an effort to establish “energy dominance.”

The analysis released Tuesday will have a 60-day public comment period.

-ABC New Climate Unit's Kelly Livingston

Don't let the recent blasts of cold and snow impacting much of the U.S. fool you. Meteorological winter, which started Dec. 1, is most of the country's fastest-warming season, according to the National Oceanic and Atmospheric Administration (NOAA). And the impacts of this warming are intensifying with each passing year.

While cold and snowy conditions will continue to be a part of winter weather across the country, the global climate continues to warm at an accelerating rate. This long-term warming trend continues to fuel an overall decline in snow and extreme cold events across the U.S. and worldwide.

Our winter wonderlands are changing from white to wet as increased rainfall replaces snowfall and warmer temperatures make it difficult for snow to stay on the ground. This impacts everything from winter tourism to local ecosystems and agriculture. The multi-billion dollar winter tourism industry has already lost revenue due to the decrease in snow days, according to the Fifth National Climate Assessment.

While there is a good understanding of the general long-term trends and impacts of a warming winter season, we still have much to learn about how these changes explicitly impact a local area.

Climate Central is shedding some light on local impacts in a new report. The nonprofit climate research group compared the number of above-freezing winter days to historical averages and investigated any links to climate change.

The report estimates that in the U.S., 28 states and around 63% (39 out of 62) of the cities analyzed experienced, on average, an additional week's worth of above-freezing winter days over the past decade. In other words, these days felt less like winter and more like the start of spring.

Specific location-based data like this could be extremely valuable to a ski resort by helping them allocate resources for an upcoming winter season or planning their long-term business strategy. While smaller-scale climate change attribution is still a relatively new area of climate science, further advancements could provide a vital resource as the world adapts to our changing climate.

-ABC News meteorologist Dan Peck

Humans are dependent on the land for our very survival. If we can't farm, we don't eat. However, much of that precious soil is in danger due to human-amplified climate change, according to a new report.

In its new report, the U.N. Convention to Combat Desertification (UNCCD) found that 77.6% of the Earth's land has become permanently drier over the last three decades leading up to 2020. During the same period, drylands expanded by more than 1.6 million square miles and now cover more than 40% of the planet (excluding Antarctica).

Drylands are regions characterized by low rainfall and moisture, resulting in scarce water and arid land. Drier land can result in insufficient food production, increased wildfire activity, water scarcity and land degradation, according to the report.

"Unlike droughts—temporary periods of low rainfall—aridity represents a permanent, unrelenting transformation," UNCCD Executive Secretary Ibrahim Thiaw said in a press statement. "Droughts end. When an area's climate becomes drier, however, the ability to return to previous conditions is lost. The drier climates now affecting vast lands across the globe will not return to how they were and this change is redefining life on Earth."

The report says human-amplified climate change is the primary reason for this transformation. The UNCCD finds that greenhouse gas emissions from electricity generation, transportation, industry and land use changes are warming the planet and affecting rainfall, evaporation and plant life. They say those changes create the ideal conditions for increased dryness.

And it's not just dry areas getting drier. The researchers found that more than 7% of global lands were transformed from non-drylands to drylands or from less arid areas to more arid. They warn that another 3% of the world's humid areas could become drylands by the end of the century if we don't reduce greenhouse gas emissions.

"Without concerted efforts, billions face a future marked by hunger, displacement, and economic decline. Yet, by embracing innovative solutions and fostering global solidarity, humanity can rise to meet this challenge. The question is not whether we have the tools to respond—it is whether we have the will to act," Nichole Barger, chair of the UNCCD's science-policy interface, said in a statement.

The report makes several recommendations, including better monitoring, improved land use policies and investing in new water efficiency technologies. But they make it clear that the world must curb global warming if they are to stop the future damage and the threats that come from it.

-ABC News Climate Unit's Matthew Glasser

The Earth produces a lot of heat. Scientists believe our planet's inner core is nearly as hot as the sun. Radioactive particles in rocks slowly decay, constantly replenishing the heat. Geothermal energy harnesses that heat to create energy and warm homes and buildings.

However, geothermal energy isn't widely used despite being clean and renewable. It's expensive and often location-specific, usually near tectonic plate boundaries.

But according to a new report from the International Energy Agency (IEA), geothermal power could become a significant source of electricity for the world. The intergovernmental organization found that "geothermal energy could meet 15% of global electricity demand growth between now and 2050 if project costs continue to decline."

That would be enough power to meet the current demand of the United States and India combined. Unlike wind and solar, the IEA says geothermal can provide 24/7 energy generation. It also has the added benefit of heat production and storage.

"New technologies are opening new horizons for geothermal energy across the globe, offering the possibility of meeting a significant portion of the world's rapidly growing demand for electricity securely and cleanly," IEA Executive Director Fatih Birol said in a press statement.

The IEA says with more financial investment, the cost of geothermal energy could fall by 80%. And at a time when finding workers with green energy skills can be challenging, the report states "up to 80% of the investment required in geothermal involves capacity and skills that are transferrable from existing oil and gas operations."

"Geothermal is a major opportunity to draw on the technology and expertise of the oil and gas industry. Our analysis shows that the growth of geothermal could generate investment worth $1 trillion by 2035," Birol added.