We believe that climate change is a real, ever-present danger to our planet. We stand with the 97% of scientists who agree the earth’s temperature is getting warmer and the 84% of scientists who agree global warming is human-induced. We challenge Indiana University to improve its recycling system, prioritize reusable products, and reintroduce composting practices. We pledge to work on these and other initiatives to improve sustainability on a broader level.
- Climate change affects the social and environmental determinants of health – clean air, safe drinking water, sufficient food and secure shelter.
- Between 2030 and 2050, climate change is expected to cause approximately 250 000 additional deaths per year, from malnutrition, malaria, diarrhoea and heat stress.
- The direct damage costs to health (i.e. excluding costs in health-determining sectors such as agriculture and water and sanitation), is estimated to be between US$ 2-4 billion/year by 2030.
- Areas with weak health infrastructure – mostly in developing countries – will be the least able to cope without assistance to prepare and respond.
- Reducing emissions of greenhouse gases through better transport, food and energy-use choices can result in improved health, particularly through reduced air pollution.
- Globally, the number of reported weather-related natural disasters has more than tripled since the 1960s. Every year, these disasters result in over 60 000 deaths, mainly in developing countries.
- The 100-year linear warming trend (1906-2005) was 0.74°C, with most of the warming occurring in the past 50 years. The warming for the next 20 years is projected to be about 0.2°C per decade.
Projections of future changes in climate indicate for example the following:
- Increasing atmospheric carbon dioxide concentrations lead to increasing acidification of the oceans;
- Snow cover projected to contract, widespread increases in thaw depth over most permafrost regions;
- Sea ice projected to shrink in both Arctic and Antarctic, and arctic late-summer sea ice may disappear almost entirely by the latter part of the 21st century;
- Hot extremes, heat waves and heavy precipitation events very likely to continue to become more frequent;
- Changes in precipitation patterns, with increase being very likely in high latitudes, while decreases are likely in most subtropical land regions;
- Anthropogenic warming and sea level rise would continue for centuries due to the time scales associated with climate processes and feedbacks, even if greenhouse concentrations were to be stabilized.