Fossil leaves from Africa have resolved a prehistoric climate puzzle — and also confirm the link between carbon dioxide in the atmosphere and global warming.
Research until now has produced a variety of results and conflicting data that have cast doubt on the link between high carbon dioxide levels and climate change for a time interval about 22 million years ago.
But a new study has found the link does indeed exist for that prehistoric time period, say SMU researchers. The finding will help scientists understand how recent and future increases in the concentration of atmospheric carbon dioxide may impact the future of our planets.
The new analyses confirm research about modern climate — that global temperatures rise and fall with increases and decreases in carbon dioxide in our atmosphere — but in this case even in prehistoric times, according to the SMU-led international research team.