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The Union of Concerned Scientists advocates for a 'count carbs and make carbs count' approach to transportation fuels, emphasizing the need for life cycle emissions analysis to distinguish between high-carbon fuels like liquid coal and low-carbon alternatives like cellulosic ethanol. The report highlights that while some biofuels can significantly reduce emissions, others may increase them depending on feedstock and land use. It promotes the adoption of Low Carbon Fuel Standards, citing California's model, to drive the market toward sustainable, low-carbon fuels and avoid the high emissions associated with liquid coal and tar sands.

The document examines the environmental impact of palm oil production, specifically focusing on the release of carbon dioxide from the deforestation of tropical forests and the drainage of peatlands. It highlights Indonesia and Malaysia as the primary producers and discusses the resulting loss of biodiversity and increased greenhouse gas emissions. The text suggests that global demand can be met without further ecosystem destruction by improving yields, utilizing degraded lands, and implementing stronger government policies and corporate commitments.

The Union of Concerned Scientists (UCS) analysis reveals that the majority of money spent on gasoline in the U.S. flows to oil companies rather than local communities. For a typical $50 fill-up, $33 goes toward crude oil, with $20 benefiting private and publicly traded companies and $13 benefiting government-run entities. The report argues that individual shareholders receive negligible returns from their own gasoline expenditures; for example, a person with $1 million in a balanced portfolio would earn less than a penny in stock returns from spending $1,700 annually on gas from ExxonMobil. Conversely, investing in fuel-efficient vehicles, such as a hybrid Ford Fusion, can result in lifetime savings of over $5,000. On a national scale, UCS estimates that federal fuel economy standards for 2017-2025 could provide consumers $50 billion in net savings by 2030 and create between 484,000 and 570,000 jobs. The document concludes that reducing oil use is essential to mitigate global warming, as transportation accounts for more than one-third of all U.S. carbon dioxide emissions.

The report finds that companies in Latin America and the Caribbean (LAC) achieve a high average internal rate of return (IRR) of 17% on low-carbon investments, significantly outperforming European companies. Energy efficiency measures are the primary driver of emissions reductions, delivering an average IRR of 16.7%. The document also highlights that LAC companies are setting emissions targets that are, on average, 14% more ambitious than science-based recommendations. It argues that this strong business case should encourage regional governments, particularly Peru, to push for more ambitious international climate agreements.

The report highlights that companies in Latin America and the Caribbean (LAC) achieve an average internal rate of return (IRR) of 17% on low-carbon investments, with energy efficiency projects specifically yielding 16.7%. It notes that the region's energy demand is 54% met by renewables and that LAC companies generate double the emission savings per dollar invested compared to those in the US. The document encourages the use of 'smart policies' such as cap-and-trade and renewable energy policies to further accelerate decarbonization.

The study finds that scaling up switchgrass production in the U.S. would likely displace existing crops and conservation land, potentially increasing commodity prices and reducing exports. While it may reduce erosion and nutrient pollution, increased nitrogen application could lead to higher nitrous oxide emissions, potentially offsetting soil carbon sequestration benefits and increasing overall greenhouse gas emissions from the agricultural sector.

Dr. Jonathan Pershing of the World Resources Institute argues that energy security and climate goals are often aligned but require an integrated policy framework to avoid conflicts. He proposes effectiveness and political feasibility criteria to evaluate policies, noting that while efficiency and renewables offer 'double wins,' other options like natural gas imports or corn-based biofuels can create security risks or environmental damage. The testimony provides specific policy recommendations for the US regarding cap-and-trade, production tax credits, transportation, and biofuels, while also highlighting the vulnerability of developing nations and the risk of climate-induced conflict and migration.

The document distinguishes between a traditional bioeconomy focused on energy transition and industrial agricultural inputs and a 'bio-ecology bioeconomy' designed for the Amazon. It argues that for the tropical forest biome, the bioeconomy must be a deforestation-free system that integrates economic activity with socio-ecological landscapes, valuing the knowledge of local populations and the role of Amazonian cities in mediating the relationship between society and nature.

The document introduces the concept of sustainable development policies and measures (SD-PAMs), which align a host country's national development priorities with a lower-carbon trajectory within an international climate framework. It evaluates the merits and limitations of this approach and examines its operational implications through case studies in Brazil, China, India, and South Africa.

The document addresses the environmental risks associated with the unprecedented expansion of the U.S. corn ethanol industry following the Energy Policy Act of 2005. It argues that policy focus should shift from industry expansion to an evolution that prioritizes energy security and environmental benefits, offering specific farm policy recommendations to manage soil, water, and greenhouse gas impacts.

The analysis concludes that biomass is a limited resource that should play a minor role in energy production, with priority given to carbon removal, chemicals production, and next-generation fuels over crop-based biofuels. It warns that demand for biomass could exceed sustainable supply, potentially leading to land use changes that increase greenhouse gas emissions, and recommends accelerating electrification and energy efficiency to reduce biomass demand.

The document outlines a strategic roadmap developed by CSIS and WRI to transition the United States to a secure, low-carbon energy economy. It argues that energy security and climate goals must be integrated into all policymaking to avoid the instability caused by either continued fossil fuel dependence or the premature adoption of unreliable low-carbon alternatives. The proposed framework emphasizes establishing a long-term vision, resetting the energy system through carbon pricing and financial commitments, and managing the transition by balancing short-term demand with long-term decarbonization.

The report contends that bioenergy is an inefficient use of land that exacerbates a projected 70 percent 'food gap' between 2006 calorie availability and 2050 needs. It asserts that large-scale bioenergy targets are unrealistic, as meeting a 20 percent global energy demand target by 2050 would require doubling the world's annual plant harvest. The author argues that bioenergy's climate benefits are often overestimated due to 'double counting' carbon absorption that would occur regardless of energy use. In contrast, solar photovoltaics are presented as significantly more land-efficient, capable of generating over 100 times the usable energy per hectare. The document recommends phasing out subsidies and regulatory requirements for crop-based biofuels and instead prioritizing 'additional' biomass—such as timber processing wastes and landfill methane—for hard-to-abate sectors like aviation.

The policy brief warns that using soybeans and corn for aviation fuel increases food prices and causes deforestation, urging the US government and states like California to prioritize non-food feedstocks such as waste biomass and e-fuels.

The World Resources Institute argues that while biofuels can serve as a domestic substitute for petroleum and offer lower emissions than fossil fuels, their actual impact on emissions and the environment depends on the specific feedstocks and conversion processes used. Consequently, the WRI emphasizes that US policies promoting the biofuels industry must be carefully designed to minimize negative environmental and economic impacts.

The biofuels industry has expanded due to government blending requirements and clean fuels standards, with potential further growth from the aviation and maritime sectors seeking to meet emission targets. However, there is significant controversy regarding how these policies account for greenhouse gas reductions and the extent to which biofuels drive tropical deforestation.

The briefing argues against the simple extrapolation of financial discount rates to physical carbon flows when assessing the emissions impact of land-use change for biofuels. It proposes distinguishing between the 'project horizon' (cultivation period) and the 'impact horizon' (atmospheric effect period), suggesting the latter be treated as a rolling target. The document further recommends that salvaged carbon from future revegetation be excluded from initial conversion accounting and suggests that if discounting is necessary, a range of values—including zero or negative rates—should be considered.

The world faces a 69 percent gap between 2006 crop calories and those required by 2050 for a population of 9.6 billion. Closing this gap through production alone would require increases exceeding those seen between 1962 and 2006. The document proposes a 'menu of solutions' categorized by reducing consumption, increasing production on existing land, and reducing emissions. Key strategies include cutting food loss and waste in half (reducing the gap by 20%), achieving replacement level fertility in sub-Saharan Africa (reducing the regional gap by 25%), and shifting 20% of future beef consumption to other proteins. It warns that aggressive bioenergy targets could widen the food gap to 100%.

The document examines how a national carbon price would induce emissions reductions across the U.S. economy, with the most immediate and significant impacts occurring in the electricity sector. It argues that while U.S. Energy Information Administration (EIA) forecasts are conservative, empirical evidence from places like British Columbia suggests that carbon pricing can drive substantial behavioral changes and technological innovation. The authors advocate for a combination of carbon pricing and complementary policies, such as R&D funding and energy-efficiency standards, to overcome market barriers and achieve a target of reducing emissions by more than 80 percent by 2050.

A WWF study finds that post-harvest losses for corn and soy in the US are significantly higher than industry expectations, with corn losses averaging 4.7% and soy 4.5%. These losses result in billions of dollars in economic waste and millions of tons of GHG emissions. The report identifies equipment sophistication and operator experience as primary drivers of loss and argues that reducing these losses can alleviate pressure to convert natural habitats into cropland.