Welcome to my website for CSE3
by: John Gnanasekaran
Heres a link to my email: UCSC Email
Heres a link to a climate change website by NASA:
Global Climate Change
Picture of Global Temperature Change since 1850
Facts about climate change
- The concentration of carbon dioxide in our atmosphere, as of 2018, is the highest it has been in 3 million years
- NASA and NOAA data show that global averages in 2016 were 1.78 degrees F (0.99 degrees C) warmer than the mid-20th century average. Seventeen of the 18 warmest years have occurred since 2000
- Eleven percent of all global greenhouse gas emissions caused by humans are caused by deforestation — comparable to the emissions from all of the cars and trucks on the planet
- In the Amazon, 1% of tree species sequester 50% of the region’s carbon
- Eleven percent of the world’s population is currently vulnerable to climate change impacts such as droughts, floods, heat waves, extreme weather events and sea-level rise
- Just 0.7% of the world’s forests are coastal mangroves, yet they store up to 10 times as much carbon per hectare as tropical forests.
- An area of coastal ecosystems larger than New York City is destroyed every year, removing an important buffer from extreme weather for coastal communities and releasing carbon dioxide into the atmosphere.
- Conserving ecosystems is often more cost-effective than human-made interventions. In the Maldives, building a sea wall for coastal protection cost about US$ 2.2 billion. Even after 10 years of maintenance costs, it is still four times cheaper to preserve the natural reef.
- Tropical forests are incredibly effective at storing carbon — providing at least 30% of action needed to prevent the worst climate change scenarios. Yet nature-based solutions only receive only 2% of all climate funding.
- 195 countries signed the 2015 Paris Agreement, agreeing to limit global warming and adapt to climate change, partly by protecting nature