The Weather Network – Earth Day at 50: A look to the past offers hope for the planet’s future

Tuesday, April 21st 2020, 8:02 am – The first Earth Day helped catalyze more than two decades of sweeping legislative changes, first at national levels, and then through multilateral institutions seeking to tackle global environmental problems.

Share: 4 little things you can do for EARTH HOUR, and any other day this year

Fifty years ago, on April 22, 1970, millions of people took to the streets in cities and towns across the United States, giving voice to an emerging consciousness of humanity’s impact on Earth. Protesters shut down 5th Avenue in New York City, students in Boston staged a “die-in” at Logan airport and demonstrators in Chicago called for an end to the internal combustion engine.

CBS News anchor Walter Cronkite hosted a half-hour Earth Day special, calling for the public to heed “the unanimous voice of the scientists warning that halfway measures and business as usual cannot possibly pull us back from the edge of the precipice.”

Today, Cronkite’s words are eerily familiar. Warnings of impending ecological crises are now commonplace. But are we prepared to heed the warnings? In 1970, the answer was yes. The same might just be true, once again, in 2020.

CBS News Earth Day special report, part 1, from April 22, 1970.


In 1970, the world was reaching the end of a post-war economic boom, associated with a rapid expansion of industry and manufacturing. “Better living through chemistry,” was radically changing the daily lives of many of the world’s inhabitants. Pesticides like DDT had saved thousands from malaria and other insect-borne diseases, while chlorofluorocarbons (CFCs) had expanded safe and reliable refrigeration around the world.

But dark clouds loomed on the horizon. As the air, water and land became increasingly choked with industrial wastes, Rachel Carson’s 1962 book Silent Spring sounded a clear warning about the poisonous effects of DDT and other synthetic compounds across the food chain.

Increasing ecological awareness was fuelled by the social unrest of the civil rights and anti-war movements. The youth of the day created a counter-culture that openly questioned their parents’ notions of progress.

GettyImages-1091320788 - Earth It’s the only home we’ve got. Courtesy: Getty/NASA.


The first Earth Day helped catalyze more than two decades of sweeping legislative changes, first at national levels, and then through multilateral institutions seeking to tackle global environmental problems.

The 1987 Montreal Protocol and 1992 Rio Earth Summit produced framework agreements to limit the accumulation of ozone-destroying CFCs, protect global biodiversity and mitigate human impacts on the climate system. These agreements sought to balance economic growth with ecological and social justice.

Within a few years of the Rio Earth Summit, other powerful forces of globalization began to emerge. In 1995, the World Trade Organization was created, ushering in a new economic order that has exerted a profound impact on planet Earth and its inhabitants.

Since the mid-1990s, rapid expansion of trade in the new digital economy has stimulated development in some of the world’s poorest countries, lifting millions out of poverty, but also greatly increasing income inequality. At the same time, globalization has expanded the ecological footprint of the world’s wealthiest countries over supply chains stretching across the planet.

Today, 25 years into our new globalized era, we must reckon with the unintended consequences of progress, much as we did in 1970. Between 1945 and 1970, and again from 1995 to 2020, our societies have transformed through geopolitical shifts, economic expansion and technological developments.

While the specifics are different, there can be no doubt that both periods left a strong imprint on planet Earth. But are we ready to tackle profound challenge of redefining our relationship with Earth?



Ignorance is no longer an excuse for inaction; a half century of science has provided clear evidence of the ongoing deterioration of Earth’s biophysical systems. What we lack is determination and courage in the face of powerful oppositional forces.

Much as Carson did in the 1960s, we still struggle against vested economic and political interests intent on maintaining the status quo. We must also recognize that the problems are now embedded deeply into the fabric of societies; tackling climate change, for example, requires nothing short of re-imagining the global energy sector.

Read more: A year of resistance: How youth protests shaped the discussion on climate change

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