Emissions from the largest greenhouse gas emitters in the U.S. were down slightly in 2022, but thousands of industrial facilities with substantial emissions remain, according to data from the Environmental Protection Agency’s recently released Greenhouse Gas Reporting Program.
An Inside Climate News analysis of the data highlights the top 10 greenhouse gas emitters as well as the top emitter for each of six leading greenhouse gasses: carbon dioxide, methane, nitrous oxide, hydrofluorocarbons, perfluorocarbons and sulfur hexafluoride, the world’s most potent greenhouse gas.
The assessment also identified top emitters of CO2 and methane, the two leading drivers of climate change, from each of several significant sectors of the economy for greenhouse gas emissions—refineries, steel mills and liquified natural gas (LNG) export terminals and underground gas storage facilities.
Some of the country’s largest climate polluters slashed their emissions in 2022 or said they are in the process of doing so, either voluntarily or by government mandate.
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📸: Vincent D. Johnson / for Inside Climate News
The regeneration of Sighthill in Glasgow is moving forward at scale, led by Keepmoat, with hundreds of new energy‑efficient homes and major infrastructure improvements. The scheme highlights sustainable urban development in practice, with strong focus on community links, job creation and low carbon building standards. Delivering housing with reduced Whole Life Carbon is central to driving environmental sustainability in construction across the UK.
In Glastonbury, Beard Construction has started work on the adaptive reuse of Baily’s Buildings, a former industrial site. The approach of retrofitting existing structures demonstrates how Embodied Carbon reduction can be achieved while preserving historic character. The project reflects rising demand for sustainable building design that aligns with Circular Economy in construction principles, lowering the carbon footprint of construction while providing long‑term Life Cycle Cost savings.
Across Europe, climate risks are shifting priorities. Extreme heat and flooding are disrupting construction schedules and damaging materials, with economic costs projected to reach billions. The sector faces mounting pressure for climate‑resilient and sustainable design solutions. Adopting eco‑design for buildings, low carbon construction materials and lifecycle assessment frameworks will be essential to enhance building lifecycle performance and safeguard investment resilience.
Global demand for air conditioning is exposing the urgent need for low carbon design. Without radical improvements in passive cooling, natural ventilation and insulation standards, energy‑efficient buildings risk being undermined by runaway emissions. Transitioning to net zero carbon buildings requires both technological innovation and a holistic Whole Life Carbon Assessment to secure carbon footprint reduction across the building lifecycle.
Digitalisation is also influencing sustainable construction pathways. Veolia’s launch of its North American Hubgrade Centre, while focused on utilities, signals the integration of data‑driven tools into sustainable building practices. Such systems have clear relevance for resource efficiency in construction, enabling improved environmental product declarations (EPDs), energy optimisation and smarter circular construction strategies.
Public investment is increasingly underpinning decarbonising the built environment. The UK’s Great British Energy initiative will fund new renewable infrastructure to support carbon neutral construction and net zero Whole Life Carbon goals. Affordable clean energy strengthens the ecosystem for eco‑friendly construction and sustainable material specification, ensuring the next generation of green construction projects can thrive economically while reducing the environmental impact of construction.
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