The Earth may suffer irreversible damage that could last tens of thousands of years because of the rate humans are emitting carbon into the atmosphere.

Now one expert believes the grave could reveal that the kingdom was facing similar problems to our own, in the form of political unrest and climate change.

The timing and duration of historical climate changes have been debated by scientists for years. Ice core records, though, can offer a way for scientists to study glacial-interglacial cycles.

Climate change over the last 150 years may estimate future global temperatures, a NASA study has found.

Scientists have discovered that a vast river network was occupied the sands of the western Sahara desert.

What did African wildlife look like 1,000 years ago? That's exactly what scientists are finding out in a bid to better understand how they have shaped the world we live in.

Even as Lamar Smith (R-Tx.), chairman of the House Committee on Science, Space, and Technology, continues to investigate a high profile study from federal scientists debunking the idea of a global

Even though plants first emerged on Earth 400 million years ago, it was not until approximately 80 million years later that wildfires began ripping through forests and grasslands like they do today

The bacteria Yersinia pestis is the etiological agent of plague and has caused human pandemics with millions of deaths in historic times. How and when it originated remains contentious. Here, we report the oldest direct evidence of Yersinia pestis identified by ancient DNA in human teeth from Asia and Europe dating from 2,800 to 5,000 years ago. By sequencing the genomes, we find that these ancient plague strains are basal to all known Yersinia pestis. We find the origins of the Yersinia pestis lineage to be at least two times older than previous estimates.

The provisioning of potable water was a microcosm of the Ottoman state's incomplete projects of technopolitical modernization on the Arab frontier. Water questions sat at the intersection between international pressures surrounding cholera, drought, Wahhabi and Bedouin disorder, and the inability of the state to impose its will on the semi-autonomous Amirate of Mecca. To be sure, Ottoman public health reforms and increased attention to water infrastructure were partly a product of the intense international attention generated by the hajj's role in the globalization of cholera.