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Analysis of USA National Phenology Network data shows that first spring leaves now emerge earlier in 88% of 242 major U.S. cities, shifting by an average of six days since 1981. This trend, combined with a freeze-free growing season that has stretched 21 days longer on average across 173 cities between 1970 and 2025, extends allergy seasons and increases the risk of 'false spring' crop losses. Ecological disruptions include potential mismatches between bird migration and the peak abundance of food sources.

The 2025 Progress Report details WWF's global initiatives to safeguard threatened species. Key achievements include the establishment of pangolin monitoring in southern Africa, the launch of the Elly Allies Initiative for Asian elephants, and the development of Shellbank, a DNA-based toolkit for sea turtle traceability. The report also highlights a 74% increase in wild tiger populations since 2010 and the formation of the Tribal Buffalo Lifeways Collaboration to restore bison to Native lands in the Great Plains.

The 2024 Plowprint report by WWF International tracks the cumulative footprint of cropland conversion in the Great Plains. In 2022, approximately 1.9 million acres of grasslands were converted to croplands across the US and Canada. While this is a slight improvement over the 10-year average of 2.6 million acres, the report emphasizes that current levels of loss remain unacceptable. The analysis highlights that 55% of Great Plains land remains intact, with Tribal lands showing higher conservation rates at 80%. The report advocates for strengthening the Farm Bill, expanding the Sodsaver provision, and reforming biofuels policies to reduce incentives for grassland conversion.

The document reports a significant increase in billion-dollar severe storms in the U.S., with a shift in tornado activity toward the Southeast and Mid-South. It highlights the vulnerability of mobile home residents and projects a nationwide increase in supercell frequency and a shift toward more winter and early spring storms by the end of the century.

Grasslands are critical for biodiversity and carbon sequestration, holding about one-third of global terrestrial carbon stocks, yet they remain vastly unprotected. In the U.S., over 70 percent of prairies have been destroyed, with 10 million acres lost in the Great Plains between 2016 and 2020. The document identifies federal crop insurance subsidies and the Renewable Fuel Standard (RFS) as policies that unintentionally encourage the conversion of grasslands to cropland. To reverse these trends, the author advocates for strengthening the "Sodsaver" program, ensuring energy crops from converted grasslands do not qualify for the RFS, and increasing investment through the 2023 Farm Bill and the North American Grasslands Conservation Act.

The document advocates for using the US Farm Bill to transition toward a sustainable food system that achieves net zero emissions in agriculture by 2040 and halts habitat conversion. It emphasizes the link between sustainable agriculture and human health, noting that 38 million individuals lived in food-insecure households in 2020. Key recommendations include protecting Inflation Reduction Act conservation funding, scaling up regenerative agriculture, reducing the 40% of food loss and waste, and improving data collection for climate and nature outcomes.

The document highlights the critical role of grasslands in biodiversity and carbon sequestration, noting that over 70 percent of American prairies have been destroyed. It identifies federal crop insurance subsidies and the Renewable Fuel Standard (RFS) as primary drivers of habitat loss and proposes six policy interventions, including amending the RFS, strengthening the Sodsaver provision, and passing the North American Grasslands Conservation Act.

The document argues that the 2023 Farm Bill should be used to make US agriculture net zero by 2040 and reverse species decline. It proposes expanding the Grassland Conservation Reserve Program (CRP), strengthening the Sodsaver provision to prevent native prairie conversion, and increasing funding for regenerative agriculture and technical assistance. It also recommends reducing food loss and waste, improving freshwater management, and ensuring bioenergy supports only advanced fuels with at least 50% life-cycle GHG reductions. Additionally, it emphasizes increasing equity for Tribal Nations and historically underserved producers.

WWF's 2023 Plowprint analysis reveals that 1.6 million acres of grasslands in the US and Canadian Great Plains were plowed in 2021, contributing to a total loss of 32 million acres since 2012. The report identifies crop insurance subsidies and biofuels policies as primary drivers of this conversion. To combat this, WWF recommends that the US Congress use the Farm Bill to strengthen the Sodsaver provision, expand the Grassland Conservation Reserve Program (CRP), and protect Inflation Reduction Act funding. Additionally, the report supports the North American Grasslands Conservation Act and amendments to the Renewable Fuel Standard to ensure biofuels do not incentivize the conversion of native sod.

The document identifies the Renewable Fuel Standard (RFS) and crop insurance subsidies as primary drivers of grassland conversion in North America. It proposes specific reforms to these policies, alongside the expansion of Farm Bill conservation programs and the passage of the North American Grasslands Conservation Act, to mitigate biodiversity loss and enhance carbon sequestration.

In 2020, approximately 1.8 million acres of grasslands were converted to cropland across the Great Plains, with 385,000 acres lost in the Northern Great Plains. For the first time since the report's inception, wheat has replaced corn as the primary crop driving this loss across the entire region. While the 2020 conversion rate was lower than the five-year average, nearly 10 million acres have been plowed since 2016. The report highlights policy mechanisms for conservation, including the North American Grasslands Conservation Act and the 2023 Farm Bill, and notes the threat of woody-encroachment as a significant, though separate, driver of grassland loss.

The 2020 Plowprint Report finds that between 2014 and 2018, grasslands in the Great Plains were tilled at an average rate of four football fields per minute. In 2018, approximately 2.1 million acres were converted across the U.S. and Canada, though this was offset by a 2 million acre increase in perennial cover. Wheat is the primary driver of conversion in the Northern Great Plains, while corn and soy dominate conversion across the U.S. The report also introduces a new analysis of northern Mexico's grasslands and updates its tracking methodology to improve spatial resolution and accuracy.

The document details the rising trends of heat waves and heat stress in the US, attributing recent increases to human-caused climate change and projecting more severe events by 2100 unless emissions are stabilized.

The 2018 Plowprint Report by WWF International documents the conversion of grasslands to cropland in the Great Plains and Northern Great Plains (NGP). While overall conversion decreased in 2017, South Dakota experienced an increase in grassland loss. The report highlights the ecological and financial risks of plowing marginal soils, which leads to soil erosion and expensive water treatment for downstream communities. It urges the US government to use the 2018 Farm Bill to strengthen conservation programs like the Sodsaver policy, CRP, and EQIP to protect remaining intact grasslands.

The report argues that reintegrating livestock into diversified cropping systems can improve farmer profits and reduce environmental degradation. Using economic and environmental modeling, it demonstrates that transitioning from corn-soy monocultures to perennial pastures and complex rotations can sequester soil carbon, reduce synthetic fertilizer and fuel use, and lower water footprints. However, the author notes that these systems typically produce less beef per acre, suggesting that the greatest benefits occur when improved management is paired with a reduction in overall beef consumption. The report concludes with policy recommendations for the USDA and Congress to incentivize regenerative practices through conservation programs, crop insurance reform, and increased agroecological research.

The document analyzes how carbon taxes or cap-and-trade programs affect U.S. households through expenditures, income, and revenue allocation. While carbon pricing can be regressive in terms of energy expenditures—disproportionately affecting low-income households and coal-dependent regions—the authors argue that the overall impact is determined by how the government uses the revenue. By targeting a small portion of revenue (approximately 10-12%) toward low-income households and coal communities, policymakers can offset burdens and ensure these vulnerable groups are not driven deeper into poverty. The brief compares various revenue uses, such as lump-sum rebates, labor tax swaps, and capital tax swaps, concluding that the policy is not inherently regressive and can be designed to be progressive.

The Plowprint report by WWF International tracks the gross conversion of intact grasslands to cropland in the US and Canada from 2008/2009 to 2015. Unlike net conversion studies, the Plowprint counts land as converted even if it later reverts to grass, arguing that the initial plow-up causes significant, long-term ecological loss. The analysis uses federal satellite-derived data to identify conversion hotspots and emphasizes the loss of ecosystem services such as carbon sequestration and water filtration. While noting that nearly half of the Plowprint area had reverted to perennial cover by 2015, WWF maintains that such restoration may not fully recover biological diversity or soil capacity. The document also outlines WWF's broader efforts to reduce grassland and forest conversion globally, specifically targeting soy, beef, and palm oil supply chains in Latin America and Southeast Asia.

The document examines the proliferation of glyphosate-resistant weeds across approximately 60 million acres of U.S. cropland, attributing the crisis to the 'perfect storm' of monoculture, overreliance on a single herbicide, and the neglect of nonchemical control methods. It criticizes the agribusiness industry's proposal to introduce crops resistant to more toxic herbicides like dicamba and 2,4-D, warning that this will accelerate the evolution of multiple-herbicide resistance and increase environmental and health risks. Instead, the authors propose agroecological solutions—such as crop rotation, cover crops, and biodiversity—which they claim could reduce herbicide use by over 90% while maintaining yields. The brief concludes with recommendations for the USDA and Congress to fund sustainable weed control and support organic farming transitions.

A survey of Americans reveals that 58% believe global warming affects U.S. weather, with significant portions of the population attributing the severity of events like the 2012 record warmth, the Midwest/Great Plains drought, and Superstorms Sandy and Nemo to climate change. The report notes an increase in the perception that U.S. weather has worsened over recent years, with 85% of respondents reporting personal experience with extreme weather in the past year, most commonly high winds and extreme heat.

EESI advocates for the continued implementation of the Renewable Fuel Standard (RFS), asserting that it is essential for displacing petroleum-based fuels and fostering the growth of advanced and cellulosic biofuels. The document argues that conventional ethanol provides the necessary infrastructure and economic foundation for the emerging cellulosic industry. EESI contends that factors other than the RFS—such as the 2012 Midwest drought, global meat demand, and commodity market speculation—are the primary drivers of corn and soybean price volatility. The organization highlights the RFS's role in rural economic development, job creation, and the reduction of toxic aromatic emissions in urban areas, while supporting the EPA's 2012 decision to deny a waiver request for the standard.