Issue 585

Invasive alien species are a major global problem causing substantial environmental and economic damage. This study explored the costs associated with such species, using the InvaCost database, to quantify the level of damage and of mitigation measures. The researchers report that between 1960 and 2020 invasive alien species caused over US$1 130.6 billion (€1 trillion) in damage worldwide, with management expenditure ten times lower, and preventative management representing a small fraction of this outlay. Click here to read more

Sowing wildflower areas is a common agri-environment measure, however, its biodiversity impacts are disputed. Recent research assessed non-pollinator invertebrates (spiders and beetles) using a focus on landscape characteristics to broaden the perspective on this debate. The researchers report that the presence of different semi-natural habitats in the surrounding area can influence the effects on arthropod communities. They recommend that landscape characteristics be considered in the design of such schemes. Click here to read more

Transition to a low-carbon economy will create additional demand for many raw materials, production of which will have a range of environmental impacts. This study assessed the environmental costs associated with meeting demand for key resources in the EU by 2050. The researchers estimate the total annual cost at €38.9 billion, with 48.5% arising from materials used for electric-vehicle batteries, including nickel, accounting for 24.9% of total cost. Click here to read more

Abandonment of agricultural areas in Mediterranean Europe can exacerbate fire risk due to increases in natural vegetation. This study used comprehensive sets of images, from 1957 and 2007, to evaluate transitions of land use and land cover over that time span in the Valencia region, eastern Spain. The researchers report strong trends towards the establishment of woodland and scrubland, but minimal transition between the two. Click here to read more