GR: Deforestation is a major cause of climate change and of biodiversity decline, extinction of amphibians, arthropods, birds, mammals, and reptiles. Economists and agritechnologists talk of reversing it now, but even in the U. S., forest harvest continues. In poorer countries, the immediate needs for cash and land for crops is not going to end with the advent of more productive crops and efficient farming methods. Such symptom treatments will not end deforestation. It will not stop until we reverse human population growth. Of course, reducing need isn’t the only problem, we might also have to control our greed, a much more difficult task.
“If you want to see the world’s climate changing, fly over a tropical country. Thirty years ago, a wide belt of rainforest circled the earth, covering much of Latin America, south-east Asia and Africa. Today, it is being rapidly replaced by great swathes of palm oil trees and rubber plantations, land cleared for cattle grazing, soya farming, expanding cities, dams and logging.
“People have been deforesting the tropics for thousands of years for timber and farming, but now, nothing less than the physical transformation of the Earth is taking place. Every year about 18m hectares of forest – an area the size of England and Wales – is felled. In just 40 years, possibly 1bn hectares, the equivalent of Europe, has gone. Half the world’s rainforests have been razed in a century, and the latest satellite analysis shows that in the last 15 years new hotspots have emerged from Cambodia to Liberia. At current rates, they will vanish altogether in 100 years.
About 12% of all man-made climate emissions now comes from deforestation, mostly in tropical areas
“As fast as the trees go, the chance of slowing or reversing climate change becomes slimmer. Tropical deforestation causes carbon dioxide, the main greenhouse gas, to linger in the atmosphere and trap solar radiation. This raises temperatures and leads to climate change: deforestation in Latin America, Asia and Africa can affect rainfall and weather everywhere from the US Midwest, to Europe and China.
“The consensus of the world’s atmospheric scientists is that about 12% of all man-made climate emissions – nearly as much as the world’s 1.2bn cars and lorries – now comes from deforestation, mostly in tropical areas. Conserving forests is critical; the carbon locked up in Democratic Republic of the Congo’s 150m hectares of forests are nearly three times the world’s global annual emissions.” –John Vidal (Continue reading: We are destroying rainforests so quickly they may be gone in 100 years | John Vidal | Global Development Professionals Network | The Guardian.)