Answer: magazines, radio, television, and the Internet
It stared 30 years ago it appeared in the news .Indeed, Svante Arrhenius, the pioneering Swedish scientist who in 1896 first estimated the scope of warming from widespread coal burning, mainly foresaw this as a boon, both in agricultural bounty and “more equable and better climates, especially as regards the colder regions of the Earth.”
There were scattered news reports through the decades, including a remarkably clear 1956 article in the New York Times that conveyed how accumulating greenhouse gas emissions from energy production would lead to long-lasting environmental changes. In its closing the article foresaw what’s become the main impediment to tackling harmful emissions: the abundance of fossil fuels. “Coal and oil are still plentiful and cheap in many parts of the world, and there is every reason to believe that both will be consumed by industry so long as it pays to do so.”
Answer:
How are they different to 'greenhouse gases'? Greenhouse gases are naturally occurring. They include carbon dioxide (CO2), methane (CH4) and nitrous oxide (N2O). Synthetic greenhouse gases are man made chemicals and generally have a much higher global warming potential than naturally occurring greenhouse gases.
Explanation:
:p
The firat one is c and the second one is d