Nature

The Paris Agreement, negotiated in 2015 and signed in 2016, aims to reduce greenhouse gas emissions and keep the global average temperature well below 2 °C above pre-industrial levels of around -0.3 °C, and trying to do the best so that the temperature does not exceed the limit of increase of 1.5 °C compared to the values before the industrial revolution. Given the observed global warming trend, this is a truly ambitious plan. But why did the agreement come about at all? What were the key stimuli? Read more

Recycling was common in ancient times, where the main reason was the high price of raw materials and production itself. Later, in the pre-industrial era, for example, paper was sorted in Japan and ash was collected in Great Britain, which was used in the manufacture of bricks. But what are the reasons now? Read more