Earth Day was first celebrated on April 22, 1970, marking 56 years of environmental progress. Since those early days of burning trash and using leaded gasoline, significant strides have been made. To commemorate these 56 years, we highlight crucial changes and achievements since the inaugural Earth Day.
Legislation
The U.S. government has played a pivotal role in environmental advocacy, beginning with the establishment of the EPA in July 1970. That same year, the Clean Air Act was introduced to address air pollution, followed by the Clean Water Act in 1972 and the Endangered Species Act in 1973.
Other notable national laws include the Safe Water Drinking Act of 1974, the Resource Conservation and Recovery Act of 1976, the Toxic Substances Control Act of 1976, the National Energy Act of 1978, and the Medical Waste Tracking Act of 1988.
States have also been proactive. Oregon enacted the first bottle bill in 1971, Minnesota introduced the Clean Indoor Air Act in 1975 to limit public smoking, and Massachusetts mandated low-flush toilets for new construction and remodeling in 1988.
Green Innovations: The Early Years
To adhere to the new environmental regulations of the 1970s, technological advancements were necessary. Notable developments include:
- The debut of the “Crying Indian” PSA in 1971
- The ban on DDT in 1972
- The introduction of the energy-efficient compact fluorescent light bulb in 1973
- Fuel economy labels on cars starting in the mid-1970s
- Catalytic converters in all cars by 1975 to reduce emissions
- The prohibition of chlorofluorocarbons in aerosol cans in 1978
- The launch of the first curbside recycling program in New Jersey in 1980
- McDonald’s switch from foam to paper containers in 1986
- The removal of mercury from latex paint in 1990
- Earth911’s introduction of the first U.S. recycling directory in 1991
- The debut of Energy Star certification for appliances and electronics in 1992
- The formation of the U.S. Green Building Council in 1993
The Political Movement
The Green Party emerged in 1984, signaling the entry of environmental issues into mainstream politics. In 2002, One Percent for the Planet was founded to encourage business donations to environmental causes, and the ISO 14001 standard established environmental management practices. Companies are now encouraged to support employee telecommuting.
Al Gore’s film, An Inconvenient Truth, released in 2006, significantly advanced environmental awareness. NBC introduced Green Week in 2007. Carbon offsets became a tool for companies to address environmental impacts. Concerns over Bisphenol A influenced consumer behavior regarding plastics. Hybrid vehicles offered tax incentives and fuel savings. Plastic bag bans spurred the popularity of reusable bags. Fracking and the Dakota Access Pipeline became contentious topics, especially leading up to the 2016 election.
Green Tech: The Next Wave
Over the last decade, green technology has become integral to daily life, featuring:
- LED light bulbs
- Portable solar panels for backpacks and watches
- Plastics derived from plants
- Motion sensor lighting
- Faucets with automatic shut-off
- Paints with low volatile organic compounds (VOC)
- Clothing made from recycled plastics
- Ride-sharing apps
- Natural cleaning products
- Vehicles with biodiesel engines
- Composting food waste
- Portable air purifiers
- Europe’s Green Deal introducing global recycling shipping regulations
- Green bond financing reaching $500 billion for renewable transitions
- President Biden’s rejoining of the Paris Climate Accord on his first day in office
The Latest Five: 2022–2026
The pace of innovation remains swift, with five new milestones shaping the environmental landscape since the 51st Earth Day:
- The Inflation Reduction Act, enacted in August 2022, became the largest climate investment in U.S. history, allocating approximately $370 billion for clean energy tax credits, EV incentives, methane reduction, and domestic clean manufacturing. Analysts expect it to drive over $4 trillion in capital investment over ten years, aiming for a 40% emissions reduction by 2030, though many provisions have been defunded by the Trump Administration.
- The Kunming-Montreal Global Biodiversity Framework, adopted by 188 governments in December 2022, set an ambitious target to conserve 30% of Earth’s land, freshwater, and ocean areas by 2030.
- America’s first commercial direct air capture plant, launched by Heirloom Carbon Technologies in Tracy, California in November 2023, uses limestone to capture CO₂ from the air, storing it in concrete. In May 2024, Climeworks opened the world’s largest direct air capture facility in Iceland, capable of removing 36,000 tons of CO₂ annually.
- Solid-state batteries, a safer, more efficient alternative to lithium-ion batteries, progressed toward commercial viability. In early 2025, Mercedes-Benz tested a prototype EV with a solid-state battery offering 25% more range than liquid-battery models. Production is expected between 2027 and 2030.
- Perovskite and tandem solar cells, which combine silicon with perovskite layers, achieved over 34% efficiency in laboratories by 2024. Manufacturers in Asia and Europe have begun pilot production, with perovskite cells offering flexible substrate applications.
The past 56 years have seen tremendous environmental progress, with more to come, including advancements in electric vehicles, nuclear fusion, regenerative agriculture, and more, as innovation continues to evolve.
Editor’s Note: Originally published on April 18, 2018, this article was most recently updated in April 2026.
