The ice regime of rivers is considered a sensitive indicator of climate change. This paper summarises the results of research on the long-term changes in the ice regime parameters under changing climate conditions and their regional peculiarities in Latvia from 1945 to 2012. The ice cover duration on Latvian rivers has decreased during recent decades. The research results demonstrated that there is a positive trend as regards the formation of the ice cover and in 31.8% of the cases the trend is statistically significant at p < 0.05. As regards the breaking up of ice, there is a statistically significant negative trend in 93.2% of the cases at p < 0.05. This indicates an earlier ice break-up date, which in turn, displays a strong correlation with the increase of the air temperature. The same pattern applies to the reduction of the length of ice cover (a statistically significant trend in 86.4% of the cases at p < 0.05). In approximately 60% of the cases, there is a statistically significant reduction of the ice thickness. The estimated winter severity index indicates warmer winters over the last 20 years as well as regional differences in the west–east direction.
Transformational adaptation – when climate change means business as usual is no longer possible
1. A lesson from the past Deep in the central Sahara, a crumbling mud-brick town sits at the edge of a dry lake bed. This is the medieval town of Germa, in southwestern Libya, one of a string of settlements along the Wadi al-Ajal, a valley defined by the towering dunes of the Ubari Sand Sea to the north, and the black cliffs of the Messak Settafet plateau to the south. Germa is romantic and impressive, but a more interesting settlement lies beneath it. Under medieval Germa, the remains of large stone buildings...
Study: Climate change could overwhelm U.S. electrical grid
Climbing temperatures associated with global warming could wreak havoc on the U.S. electrical grid, according to a new study on the economic and social costs of climate change. Published last week in the scientific journal Proceedings by researchers at the University of California-Berkeley, Stanford, and University of Michigan, the study says the country will need to spend at least $180 billion on the electrical grid by the end of the century to cope with peak consumption caused by rising temperatures. Because...
Changing climate changes soils
Varied predictions for soil organic matter as climate changes The hottest months. The snowiest winters. Catastrophic floods and droughts. Climate change impacts lives across the world in drastic and unpredictable ways. This unpredictability also extends to the more subtle – yet still important – effects of climate change. For example, it is uncertain how climate change will affect soils and their ability to support productive farms or healthy natural ecosystems. In a new study, researchers used...
Speaking the language of risk: climate change and the future of business
In an increasingly carbon-constrained economy, it is clear that an organization’s environmental, social and financial performance is dependent on climate action. The development of a thorough and goal-oriented sustainability program, one that integrates climate change impacts into risk management and takes into account the key role of private and public stakeholders, is critical to successful planning. At our Greener Horizons event in Vancouver, moderated by Nancy Wright of GLOBE Series, Bullfrog Power...
Agroforestry Mitigates Climate Change
Climate changes, as one of the biggest threats to a global food security, highly influence natural resources that are essential for crop production. Farming is not only affected by the impact of climate changes, but it’s also a significant contributor to global greenhouse gas emissions. Intensive farm practices that include both farm production and change of land use, directly affect the global carbon, water, and nutrient cycles. Farming, as a direct driver for 80% of global deforestation, also releases...