Denis Hayes
![Denis Hayes](/assets/img/authors/denis-hayes.jpg)
Denis Hayes
Denis Allen Hayes is an environmental advocate and proponent of solar power. He rose to prominence in 1970 as the coordinator for the first Earth Day...
world warning finest
These are not exhortations from overwrought extremists, but carefully phrased warnings from some of the world's finest scientists,
airplane half speed
Build high-speed, electrified trains over the most-traveled corridors. It'sreally hard to power carbon-free airplanes, but electrified trains are much easier. We'll be a half century behind the Japanese, but better late than never.
government years sea
We need a firm cap on carbon emissions from fossil fuels. No coal, oil, or gas could enter the economy until the buyer had a permit. All permits would be auctioned by the federal government, and the number of permits auctioned would be decreased by three percent per year. Permits could be traded, but they could not be created out of whole cloth by companies that plant forests or dump iron filings at sea.
years effort growth
We've made some heroic efforts, but the Earth as a whole is in worse shape today than 30 years ago, ... There's been 30 more years of greenhouses gases, species extinctions and population growth.
years land acres
An acre of windy prairie could produce between $4,000 and 10,000 worth of electricity per year - which is far more than the value of the land's crop of corn or wheat.
country earth-day firsts
When we held the first Earth Day, everyone said it was a success because of the huge turnout. It was probably the largest planned event across the country.
children fall past
The more subtle thing is more speculative. The world is well past its long-term carrying capacity for human beings living a European, much less an American, lifestyle predicated on planned obsolescence. International economic growth is largely a matter of accelerated movement of materials from mines and forests to the dump. Instead of saving and buying decent furniture we can pass on to our children, we charge our credit cards for shaped heaps of sawdust and glue that fall apart in less than three or four years.
years office volunteer
There really wasn't an environmental movement 30 years ago. The Sierra Club national office in 1969 consisted of one full-time volunteer.
important tools stones
Zeroes are important. A million seconds ago was last week. A billion seconds ago, Richard Nixon resigned the presidency. A trillion seconds ago was 30,000 BC, and early humans were using stone tools.
zero quality cards
he economy favors throughput over quality and craftsmanship, and economists are terrified because the American savings rate has crept upward from about zero to almost five percent. But the mortgage crisis and the burgeoning credit card crisis are causing Americans to become wary of irresponsible debt.
technology cities america
America has the technology and resources to meet all its energy needs while safeguarding the earth's climate. The urgent question now is, 'Do we have the will?' At least one city does, and I'm proud to live in it.
humility yesterday environmental
Asbestos, EMFs, and CFCs have given us a degree of humility. When yesterday's "triumph of modern chemistry" turns out instead to be today's deadly threat to the global environment, it is legitimate to ask what else we don't know.
jobs car casting
Whether you are buying a car or casting a ballot, choosing a job or planning a family, follow your moral compass. Don't let others define you. Don't let advertisers mold you; don't let zealots ensnare you; don't let conventional wisdom trap you....you are part of a much larger whole.
technology opportunity cells
We presently have the technology ... fuel cells, solar cells, hydrogen ... the opportunities are amazing for clean energy.