Climate change and nutrient pollution are driving the oxygen from our oceans, and threatening many species of fish. That’s the conclusion of the biggest study of its kind, undertaken by conservation group IUCN. While nutrient run-off has been known for decades, researchers say that climate change is making the lackContinue Reading
Forests can cope with a warming world if – and only if – temperature rises increase in line with increases in atmospheric carbon dioxide. Increased CO2 allows trees to develop physiological characteristics, such as greater foliage, that can cope with higher temperatures. But researchers warn that a break in theContinue Reading
Countries will have to increase their carbon-cutting ambitions five fold if the world is to avoid warming by more than 1.5C, the UN says. The annual emissions gap report shows that even if all current promises are met, the world will warm by more than double that amount by 2100.Continue Reading
Atmospheric concentrations of carbon dioxide and other greenhouse gases once again reached new highs in 2018. The World Meteorological Organization (WMO) says the increase in CO2 was just above the average rise recorded over the last decade. Levels of other warming gases, such as methane and nitrous oxide, have also surged byContinue Reading
A third of tropical African plants are on the path to extinction, according to a new assessment. Much of western Africa, Ethiopia, and parts of Tanzania and the Democratic Republic of the Congo are the hardest hit regions, standing to lose more than 40% of their richness of plants. SpeciesContinue Reading