at a time
Our last decade to prevent 2.7°F (1.5°C) warming
We’re already feeling the heat.
Though a 2.7°F (1.5°C) increase may not sound like much, it will amplify issues across our world, such as:
- Wilder weather
- Hotter oceans, souring seas, melting ice, and higher waters
- Vanishing critters and plants
- Troubled farms and food supplies
- A dip in our well-being
- Social and economic impacts
Inspired by the natural cooling effects of volcanoes, stratospheric aerosol injection (SAI) is a scientific technique that acts like a sunscreen spray for the Earth. The balloons release tiny reflective particles into the stratosphere, creating a thin reflective layer that reduces the amount of heat reaching the Earth’s surface and preventing the planet from overheating. SAI offers a promising solution to combat the immediate effects of global warming.
The stratosphere starts just above the troposphere and extends to 31 miles (50 kilometers) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer.
The troposphere starts at the Earth's surface and extends 5 to 9 miles (8 to 14.5 kilometers) high. This part of the atmosphere is the most dense. Almost all weather is in this region. This is where commercial jetliners typically fly at 6.5 miles (10.5 kilometers) up.
A recent investigation shows that major corporations' forest carbon offsets, certified by a leading authority, may be ineffective and could even exacerbate global warming.