Pyrolysis bio-oil is produced by rapidly heating the forest residues in an oxygen-free environment and then rapidly cooling the ...
A third of oil reserves, half of gas reserves and over 80% of current coal reserves globally should remain in the ground and not be used before 2050 if global warming is to stay below the 2°C target ...
"I hear, says the writer in The Bulletin, that the excavations at Skerrabrae in Orkney, which attracted so much attention last year, are to be resumed at an early date. Gordon Childe will again co-operate with the representatives of the Office of Works.
Beside the garden is the Church of All Nations, built over the rock on which Jesus is believed to have prayed in agony before he was betrayed by Judas Iscariot and arrested.
About 100 metres north of the church is the Grotto of Gethsemane, where Jesus and his disciples often camped at night.
Erosion is the process of transporting weathered material, and weathering is the actual wearing down of that material.
Weathering is an important factor in landslides; heavily weathered landscapes are much more likely to be eroded.