MANILA, Philippines—The Philippines may experience more typhoons, floods, droughts, heat waves and declines in crop production in coming years if governments worldwide fail to curb the adverse effects of climate change.

The consequences that will follow if global average temperatures rise by as much as four degrees Celsius are illustrated in a map launched in London on Friday by the British government.

The map was launched in the run-up to the United Nations Climate Change Conference in Copenhagen in December aimed at coordinating international action against climate change and threshing out a global deal on climate change.

"Ondoy and Pepeng gave us a glimpse of what's in store for us if we neglect climate change," said Colin Crorkin, charge d'affaires of the British Embassy.

"Food shortage, disease and conflict as a result become very real possibilities," he said.

Crorkin extended the UK government’s congratulations to the Philippines for the Climate Change Act, which President Macapagal-Arroyo signed into law on Friday.

"We also welcome the Philippines’ strong stand on climate change issues on the international stage," he added.

Crorkin said the British government was pressing for the most ambitious deal possible in Copenhagen to avoid these dangerous effects.

In particular, the UK government is aiming for an agreement that could help limit increases in global temperatures to only two degrees Celsius.

"Increases of more than two degrees will have huge impacts on the world," Crorkin said.

The map showed that the average land temperatures could reach 5.5 degrees above pre-industrial levels.

It also highlighted the severe effects of extreme temperatures on water availability and agricultural productivity and the risk of forest fires and sea-level rise.

British Foreign Secretary David Miliband said in a statement that the world cannot cope with a four-degree increase in global temperatures.

"But to tackle the problem of climate change, all of us, foreign ministries, treasuries, departments of defense and all parts of government and societies, must work together to keep global temperature rise to two 2 degrees. It is only by doing this that we can minimize the huge security risks presented by a future four-degree world," he stressed.