Mapping the biotic degradation hazard of wood in Europe – biophysical background, engineering applications, and climate change-induced prospects

Construction using timber has seen a resurgence in light of global climate mitigation policies. Wood is a renewable resource, and engineered wood products are proving to be competitive against concrete and steel while having several advantages. However, while the renewable nature of wood in construction is a beneficial property for climate mitigation policies, the process of biodegradation introduces a challenge for service life planning. A review of hazard mapping is presented while developing contemporary hazard maps, occurrence maps and projected hazard maps for 2050 using representative concentration pathways (RCP) 2.6 and 8.5. The risk of timber decay is expected to increase in most of Europe as the temperatures rise, with a decrease expected in dryer regions. Termites are likely to experience a range expansion as more areas become suitable, while human activity and an increase in extreme weather events like floods are expected to facilitate dispersion. Marine borer species already present a risk in most European coastal regions; however, the effect of changes in water temperatures are likely to shift the boundaries for individual borer species. Overall, warmer climates are expected to increase the metabolic activity of all of these organisms leading to a general reduction in service life.

Brazil deforestation pressures will mount at COP26

Significance During last month’s UN General Assembly, President Jair Bolsonaro unsuccessfully argued that his government was controlling deforestation in the Amazon region. Reports indicate that between August 2020 and July 2021, nearly 8,800 square kilometres (km2) of forest were cut down. Impacts Despite stronger international pressure, the outlook for forest preservation is alarming absent a well-structured policy for Amazonia. Major Brazilian business sectors will face significant risks from international climate pushback without policy improvements. Brazil will argue for greater international assistance to offset the costs of climate mitigation policies.

Climate Change in Your Backyard: When Climate is Proximate, People Become Activists

Scientific warnings about climate change continue as climate disasters strike all around the world. There is increasing public support for climate mitigation policies, and major mass protests shed light on the issue. How does climate change impact increase climate activism? I build on a conventional understanding of activism by adding the insight of construal level theory. When climate change is experienced more directly, people are more likely to act because they care more and can link concern to specific actions. Among a sample of Californians (MTurk; n = 604) as climate was perceived as more proximate, respondents were more likely to take action. A survey-experiment conducted using a US sample (MTurk; n = 609) demonstrated that as issues become more psychologically proximate, respondents were more likely to take political action. These results suggest that organizers can activate proximity to mobilize supporters.

Accounting for all territorial emissions and sinks is important for development of climate mitigation policies

The Paris agreement identifies the importance of the conservation, or better, increase of the land carbon sink. In this respect, the mitigation policies of many forest rich countries rely heavily on products from forests as well as on the land sink. Here we demonstrate that Sweden’s land sink, which is critical in order to achieve zero net emissions by 2045 and negative emissions thereafter, is reduced to less than half when accounting for emissions from wetlands, lakes and running waters. This should have implications for the development of Sweden’s mitigation policy. National as well as the emerging global inventory of sources and sinks need to consider the entire territory to allow accurate guidance of future mitigation of climate change.