TagGreenhouse gases(22)
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2020-12-012018 Community greenhouse gas emissions inventory
★ 34Seattle's 2018 Community Greenhouse Gas Emissions Inventory, prepared by the Seattle Office of Sustainability & Environment, tracks and analyzes the city's greenhouse gas emissions across sectors including transportation, buildings, industry, and waste. The report compares 2018 emissions data against previous years, examines per capita trends, and outlines Seattle's climate reduction goals and strategies. Note: This document focuses on citywide carbon emissions and climate policy, and does not address Sea-Tac Airport noise issues. -
Trump and Lee Zeldin EPA Greenhouse Gas Deregulation Announcement
A speaker addresses the room from a podium bearing the Seal of the President of the United States, while a second man in a navy suit and pink tie stands to the right holding a green official folder. The setting appears to be the Roosevelt Room or a similar formal White House venue, with an American flag and painted portrait visible in the background. -
2025-04-09U.S. Withdraws from Critical IMO Climate Meeting, Threatens Retaliation Over Emissions Pricing
Mike Schuler In a dramatic development at the International Maritime Organization’s (IMO) Marine Environment Protection Committee meeting in London, the Trump administration has announced the United States’ withdrawal from crucial maritime decarbonization negotiations taking place this week. The US government delivered a strongly worded message to IMO delegations, explicitly rejecting any measures that would impose -
WA’s largest oil refinery ramps up cleaner fuels as climate laws take hold
By Isabella Breda Seattle Times staff reporter CHERRY POINT, Whatcom County — Thick steam billowed from a series of towers and pipes, intricately woven together to form a powerhouse of the region’s energy production and Washington’s largest oil refinery. BP’s Cherry Point facility, which belched more than 2 million metric tons of climate-warming gases into -
2022-08-21Annexes to the inventory of U.S. GHG emissions and sinks
This document is a technical annex to the U.S. Greenhouse Gas Emissions and Sinks Inventory, outlining the methodologies used to measure and categorize national greenhouse gas emissions from 1990 to 2015. It identifies 'key categories' — the emission sources with the greatest impact on total national greenhouse gas levels, trends, and uncertainty — using standardized IPCC guidelines. The largest emission sources identified include road transportation, coal-fired electricity generation, and natural gas combustion across industrial, residential, and commercial sectors. -
PSCAA Community Workshop 6 1 2022
A Zoom meeting screenshot shows a Puget Sound Clean Air Agency (PSCAA) Community Workshop presentation from May/June 2022 on transportation emissions. The slide displays two pie charts comparing sources of Particulate Matter and Greenhouse Gases from transportation, with participants including Kathy Strange (PSCAA), JC Harris (Des Moines), Alejandro Paredes, and Stephen Gerritson visible in the video tiles. -
2021-02-23Civil society expectations for a green recovery
A presentation by Tim Johnson of the Aviation Environment Federation, delivered at the Aviation Noise & Emission Symposium in February 2021, examines what civil society expects from a green recovery in the aviation sector. It highlights growing airline commitments to net-zero emissions by 2050, including pledges from British Airways, United Airlines, and others, while raising the question of whether 2019 may have been the peak year for aviation CO2 emissions. The talk explores the intersection of post-pandemic recovery and environmental accountability in the airline industry. -
2021-01-19Bill analysis: HB 1099 – Improving the state’s climate response through updates to the state’s comprehensive planning framework
HB 1099 is a Washington State bill focused on improving the state's climate response by updating the Growth Management Act to require counties and cities to include climate change and resiliency planning in their comprehensive land use plans. The bill mandates reductions in greenhouse gas emissions and vehicle miles traveled, and requires the Department of Commerce to publish guidelines for achieving statewide emissions targets. It also addresses coastal resilience by requiring Shoreline Master Programs to account for sea level rise and increased storm severity. -
2021-01-01Washington State greenhouse gas emissions inventory: 1990-2018
This January 2021 report from the Washington State Department of Ecology tracks greenhouse gas emissions across Washington State from 1990 to 2018. Published by the Air Quality Program, it provides a comprehensive inventory of the state's emissions data over nearly three decades. Note that this document focuses on statewide air quality and climate data and does not specifically address Sea-Tac Airport noise policy. -
2020-09-03The contribution of global aviation to anthropogenic climate forcing for 2000 to 2018
A 2021 scientific study found that global aviation contributes a small but meaningful share of human-caused climate change, primarily through carbon dioxide emissions and the formation of contrail clouds at high altitude. The research, covering the years 2000 to 2018, found that non-CO2 effects such as contrails account for roughly two-thirds of aviation's total warming impact. The findings are relevant to ongoing policy discussions about reducing the climate footprint of air travel.