Original sentence: Developing countries are vulnerable to reduced economic growth as a result of warming.For smaller values of warming (of up to 3°C, or about 5°F), changes are expected to produce net benefits in some regions and for some activities, and net costs for others.Greater warming may produce net costs (or to reduce the benefits from smaller warming) in all regions.The IPCC reports that the effects of global warming will be mixed across regions.The effects of global warming are of concern both for the environment and human life
Edited sentence: Above 2 to 3°C warming, many developed and developing countries would be expected to suffer net negative impacts.According to a 2009 study by UCL academics, climate change and global warming pose the biggest threat to human health in the 21st century.Adverse health impacts will be greatest in low-income countries.Based on future projections of climate change, the IPCC report makes a number of predictions.Climate change currently contributes to the burden of disease and premature deaths.For smaller values of warming (of up to 2°C relative to 1990 levels), the global economic effect is expect to be plus or minus a few percent of world GDP, with most people in the world negatively affected.Increased areas will be affected by drought.It is likely that:.It is predicted that over most land areas, the frequency of warm spells/heat waves will very likely increase.Many developing countries would be expected to experience net market sector costs for 2°C warming, while many developed countries would experience net market sector benefits.Overall, the negative health impacts of climate change are expected to outweigh the benefits, especially in developing countries.Some examples of negative health impacts include:.The balance of positive and negative health impacts will vary from one location to another.The effects of global warming and climate changeare of concern both for the environment and human life.The effects of global warming will be mixed across regions.The future effects of climate change may bring some benefits, such as reduced cold deaths.There will be increased incidences of extreme high sea level (excluding tsunamis).There will be increased intense tropical cyclone activity.Vulnerability to climate change is variable within countries, and in developed countries, some people are vulnerable to less than 2°C warming.increased deaths, desease and injury due to heatwaves, floods, storms, fires and droughts.increased frequency of cardio-respiratory diseases.increased malnutrition